Deterioration Of Product Quality Research Articles

Improvement of fatty systems biotechnological interesterification with immobilized enzyme preparation usage

This work research object was fat systems interesterification biotechnology using the Lipozyme TL IM immobilized enzyme preparation. The problem of enzyme preparation activation by moistening with sodium bicarbonate aqueous solution with 7.4 ... 7.7 (3 % wt.) pH was solved in the work. The obtained results made it possible to minimize the interesterification process duration with high-quality product obtaining. The proposed enzyme preparation processing made it possible to reduce the duration of the biointeresterification process in a model fat mixture (palm stearin, coconut and soybean oils in a ratio of 1:1:1, respectively) to 3.5...3.7 hours. The product with high quality indicators, namely up to 0.26 mg KOH/g acid number, up to 0.60 mmol ½ O/kg peroxide number and 1.70 c.u. anisidine number, was obtained as a result. The obtained data can be explained by a fact that effective biocatalysis with lipolytic enzymes as the protein molecules requires the existence of two phases – lipid and water. This fact was provided by the activation parameters justified in the study. The obtained results feature was possibility of enzyme preparation activation, which is not provided under industrial conditions due to the threat of raw materials and finished products hydrolytic processes, which leads to the finished product quality deterioration. The research results made it possible to minimize hydrolytic processes in fat system during interesterification with simultaneous process efficiency increase. From a practical point of view, the discovered activation mechanism made it possible to adjust the enzyme preparation processing conditions in fat systems interesterification technology. The applied aspect of scientific result using was the possibility of improving the typical technological process of fat interesterification

Investigation of the Quinone-quinone and Quinone-catechol products using 13C labeling, UPLC-Q-TOF/MS and UPLC-Q-Exactive Orbitrap/MS

Quinones are highly reactive oxidants and play an essential role in inducing quality deterioration of fruit and vegetable products. Here, a novel stable isotope-labeling approach in combination with high-resolution tandem mass spectrometry UPLC-Q-TOF/MS and UPLC-Q-Exactive Orbitrap/MS, was successfully applied in tracking quinone reaction pathways in both real wines and model reaction systems. Unexpectedly, the binding products of quinone-quinone and quinone-catechol that are not derived from either nucleophilic reaction or redox reaction were discovered and showed the significant high peak area.Self-coupling reactions of semiquinone radicals might provide a possible interpretation for the formation of quinone-quinone products, and a charge transfer reaction coupled with a complementary donor–acceptor interaction is feasibly responsible for the products with a quinone-catechol structure. These findings endow a new perspective for quinone metabolic pathway in foods.

INNOVATIVE APPROACHES AND METHODS OF INCREASING THE TECHNICAL LEVEL MACHINES AND UNITS

Wear of parts is accompanied by a decrease in performance, especially with long-term use of machines, which causes deterioration in product quality. The growth of the equipment of agricultural production with more advanced equipment, the conduct of integrated mechanization and increase the efficiency of equipment is developing, changing and repair production. The development of the field of restoration of worn parts is based on close cooperation of repair production with branch and basic science, and achievement of scientific and technical progress. Deepening the method of group recovery technology to create a unified group equipment for surface restoration is a promising area of restoration technology in organizational terms. A large number of restored machine parts are discarded due to low wear of working surfaces, amounting to one percent of the initial weight of the parts. Research has proven and practically confirmed that the restoration of machinery, machines, and mechanisms is technically impossible to avoid, but on the other hand the restoration is economically feasible. The restored part serves the same term as the new one, and may exceed the service life of the new part. The paper presents the results of research on the performance characteristics of coatings obtained by the developed technology. These studies were aimed at improving the quality of coatings that are restored by electro contact cauterization, namely to obtain uniform physical and mechanical properties in the cross section of the coating. The result is an upgraded technology, which involves cauterization of the powder with an electrode with a shaped contact surface with simultaneous surface plastic deformation of the surface.

MONITORING AND ANALYZING THE CLASSICAL COUNTER CURRENT INDUSTRIAL TUNNEL DRYER FOR MASONRY CLAY UNITS

This paper goal was to increase the quality of the drying ware and to lower the drying scarp rate in one local brick factory. The registration of drying air parameters (temperature, humidity and velocity) along the dryer channels as well as the drying ware linear shrinkage and mass change were monitored for a month. Material and Energy balances were also recorded. Results have revealed that the drying air humidity and temperature profiles were not evenly distributed along the height of the drying tunnels. The ambient air breakthrough into the dryer was experimentally identified and quantified. It was the cause of the product quality deterioration and the reason why the critical and residual moisture in some of the products was larger than the desired one. Based on monitored data and mass and energy balances a solution was proposed for preventing the “false” air breakthrough, upgrade of the existing dryer fans and installation of the novel, measuring equipment. A hypothetical solution for increasing the capacity of the dryer, which uses the registered material and energy balances as well as factory management expectation, that the production of 50.000 masonry units per day will be achieved soon, was given also.

Effects of plasma bubble-activated water on the inactivation against foodborne pathogens on tomatoes and its wash water

The aims of the study were to evaluate the decontamination effect and inactivation mechanism of a plasma bubble-activated water (PBAW) treatment against foodborne pathogens and to analyze the physicochemical properties of PBAW. A decrease in pH and an increase in the oxidation-reduction potential of PBAW were observed. The study characterized the PBAW decontamination of Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on tomato and its wash water. A 20-min PBAW treatment reduced foodborne pathogens on tomatoes and in wash water to levels below the detection limit (1 log CFU/g or 1 log CFU/mL, respectively). The PBAW treatment did not change the color properties of tomatoes. Propidium iodide uptake and membrane lipid peroxidation of PBAW-treated bacteria significantly increased with prolonged treatment time (P < 0.05). The hydrogen peroxide, nitrite, and nitrate concentrations in PBAW increased along with PBAW treatment time. These results indicated that PBAW effectively inactivated foodborne pathogens inoculated on tomato surfaces and in wash water by oxidizing the cell membrane and causing a loss of membrane integrity through the action of reactive species dissolved in the PBAW. This study demonstrates the potential for the application of the PBAW treatment to enhance the microbiological safety of the washing process with no deterioration in product quality.

Theaflavin and its derivatives exert antibacterial action against Bacillus coagulans through adsorption to cell surface phospholipids.

To investigate the antibacterial effects of tea theaflavins and catechins against Bacillus coagulans and the underlying mechanism of antibacterial action. Bactericidal activities of theaflavin and its analogues were evaluated and compared with that of epigallocatechin gallate. Theaflavin derivatives exhibited high bactericidal activity at 50 μmol L-1 , whereas epigallocatechin gallate did not, even at 500 μmol L-1 . Furthermore, we investigated the adsorption of theaflavins to model phospholipid membranes and corresponding effects on membrane fluidity to reveal their effects on the B. coagulans cell surface. Cell membrane fluidity was decreased after treatment with theaflavin derivatives with one or more galloyl moieties. Quartz-crystal microbalance analysis showed a strong affinity of the membrane phosphatidyl glycerol (PG) bilayers for theaflavin derivatives, correlating their bactericidal activity. These findings suggest that theaflavins could effectively inhibit B. coagulans by decreasing cell membrane fluidity. Bacillus coagulans is a spore-forming heat-resistant bacterium responsible for spoilage in low-acidic beverages. Natural antimicrobial components in tea-based beverages are central to reducing microbial contamination and product quality deterioration, although mechanisms underlying their antimicrobial action remain obscure. This study highlights the inhibitory action of theaflavins on B. coagulans and their potential application in food and beverage industries.

Exploring the Preventive and Restorative Functions of Lactobacillus pentosus in Flesh Deterioration Caused by Oxidized Fish Oil Diets in Hybrid Grouper (♀ Epinephelus fuscoguttatus × ♂ E. lanceolatu)

The purpose was to investigate the preventive and restorative functions of Lactobacillus pentosus of hybrid grouper (♀ Epinephelus fuscoguttatus×♂ E. lanceolatu) flesh due to ingestion oxidized fish oil (OFO) diet. Basal diets were formulated using OFO as main lipid source and 1.0 × 10 9 CFU/g of L. pentosus was added to basal diet as experimental diet. Control group (OFO: 60 d basal diet), prevention group (OFOP: 30 d experimental diet + 30 d basal diet ), and restoration group (OFOR: 30 d basal diet + 30 d experimental diet ) were set up for grouper experiment with triplication. The results show that compared with the OFO group, the OFOP and OFOR groups significantly decreased muscle lipid deposition and lipid peroxidation production. The OFOP and OFOR groups significantly increased the polyunsaturated fatty acid content furthermore to improve nutritional value of muscle compared to the OFO group. Intervention with L. pentosus significantly influenced muscle flavor. OFOP and OFOR groups significantly upregulated expression of partial growth factor-related genes while downregulating expression of antioxidant-related genes. Consequently, the intervention of L. pentosus decreased lipid deposition and improved the nutritional value and flavor of grouper muscle, and it was recommended as a probiotic to prevent the deterioration of aquatic product quality.

Novel assistive technologies for efficient freezing of pork based on high voltage electric field and static magnetic field: A comparative study

To enhance the freezing rate and thawed product quality of pork tenderloin, an experimental study was conducted using the high voltage electric field and static magnetic field separately during freezing. Pork tenderloin pieces were frozen at −20 °C under several high voltage electric fields (10 kV/m (HVEF1), 30 kV/m (HVEF3), 50 kV/m (HVEF5)) and magnetic fields of 2 mT (MF2), 4 mT (MF4), 6 mT (MF6) and 8 mT (MF8). The effects of different methods on freezing rate, ice crystal size as well as the distribution, and product quality after thawing were investigated. The freezing time of pork tenderloin was reduced by 40.04% and 37.81% respectively, under the optimal electric and magnetic field conditions tested. The thawing loss decreased from 5.7% of conventional freezing to 1.7% of HVEF1 and 2.4% of MF2, respectively. In addition, both high-voltage electric field freezing and magnetic field freezing can better maintain the moisture state in the sample. The results for color and pH confirmed that the thawed product quality using HVEF1 and MF2 was superior to that obtained under other conditions. The myofibrillar protein in the thawed products obtained from HVEF1 and MF2 treatments was also found to be thermally more stable. It is noteworthy that the HVEF1 treated sample has the highest umami signal and the lowest salty signal. Considering the enhanced freezing efficiency and improved quality, application of HVEF1 is recommended as a viable strategy to produce high-quality frozen pork tenderloin. Industrial relevanceThe slow freezing rate of frozen meat products and serious deterioration of product quality are the key problems. Therefore, improving the efficiency of freezing is desirable. This study provides ideas for pork preservation. It caters to the need of industrial production of meat product where better efficiency freezing process is highly desirable, and the findings of this study is beneficial to the meat processing industry.

Preliminary Research on Removal of Organic Substances Contained in Wastewater from Plastic Lenses Production

&lt;p&gt;250 million people worldwide suffer from visual impairment. 64% of them wear glasses. More than 80 percent of all eyeglasses worn today have plastic lenses. Plastic lenses made of polycarbonate discs are created through the process of machining which requires the use of a coolant. The ensuing wastewater contains chips, water, and coolant. In the studied facility, the chips are separated by filtration. Water and coolant are returned to the machine tool. Due to the low particle weight some of the plastic dust flotates and creates foam. If there is too much foamed dust, a skimmer is added. In order to avoid machine damage and product quality deterioration, the mixture in circulation is changed every 24 hours. For the purpose of the study, wastewater was sampled from the plastic lenses facility. It was characterized by a high COD value of 11 200 - 20800 mg/L, a turbidity of 260-870 NTU, and a colour of about 200 mg/L. Wastewater with these parameters should not be discharged into the sewage system. For their treatment, a coagulation process (PAX 18 and PAX XL 19 H, Tanfloc SG) and Fenton process were applied. The application of aluminum coagulants resulted in a maximum reduction of COD of 55%. Maximum COD reduction after the Fenton process was 50.7%.&lt;/p&gt;&#x0D;

МЕТОДЫ УЛУЧШЕНИЯ СТРУКТУРНО-МЕХАНИЧЕСКИХ СВОЙСТВ ТЯЖЕЛЫХ НЕФТЕЙ

Abstract. Structural-mechanical properties of heavy oil from Kazakhstan deposits under the heat treatment were studied in this work. The most important and the least studied issues in the technology for the preparation and collection of oil products is the evaluation of the structural and mechanical properties of heavy oils and emulsions and ways to regulate formation them. A feature of the wells operation of fields with high viscosity oils is a sharp increase in water cut at the initial stage of development, which is associated with an excessively large difference in the rheological characteristics of reservoir oil and water. The formation of stable emulsions does not allow for the effective separation of oil from water and leads to a deterioration in product quality. In this regard, in modern conditions of intensification of hydrocarbon production, consideration of the options for the formation and destruction of complex emulsions is a prerequisite for the effective operation of oilfield treatment facilities. Therefore, the research relevance is of reducing the irretrievable losses of hydrocarbons in production systems and study the physical-chemical, structural-mechanical properties of heavy oils emulsions and to develop methods for their regulation, as well as improving oil treatment devices. Keywords: heavy oil, asphaltene, water-oil emulsions, structural-mechanical properties, high-setting oils; heat treatment; asphaltene-resinous substances; rheological parameters; demulsification; water globule; hydrodynamic effect; reservoir; barbating; surface tension.

Features of the functional state of the organism of sheep under stress

The stresses that arise during routine animal husbandry procedures, such as milking, shearing, weighing, loading and hoof care, are an actual problem in animal husbandry. The components of economic damage under stress are a decrease in overall resistance and productivity, deterioration in product quality, an increase in labor costs and funds per unit of production, an increase in animal morbidity and mortality. The studies were carried out on the basis of Belozernoe farm in the Salsky district, the Rostov region. A complex of clinical and laboratory studies was performed on 18 sheep (10 Romanov and 8 Tsigay breeds) aged 2 to 3 years, before and after a planned routine shearing. Stress in sheep caused by planned shearing was clinically manifested by general depression, in some cases, subfebrile fever, moderate tachypnea and tachycardia. It was shown that stress was accompanied by anemia, the development of erythropenia and leukopenia. Immunocompetent cells in the blood of experimental animals during stress development were analyzed. Severe lymphocytopenia was found to occur after a haircut. In addition, in the blood of experimental animals under stress, a tendency to a decrease in T-total cells was noted, which was accompanied by an increase in 0-cells, which was significant in sheep of the Tsigay breed (p0.05). When analyzing the main immunoregulatory T cells in sheep under stress, a significant increase in T-suppressors was revealed with a relatively stable level of T-helpers in the blood studied. Thus, a significant (p0.05) increase in the level of T-suppressors in sheep of Romanov and Tsigay breeds was recorded; it was by 1.15 and 1.19 times higher compared with the initial data. It should be noted that we did not find any significant differences between animals of Romanov and Tsigay breeds in stress development after shearing. The obtained data should be taken into account in the further search for methods of stress correction in sheep.

THE QUALITY OF WHEAT GRAINS AND THE PROCESS THAT AFFECTS THEIR STORAGE

In this article, the quality of wheat grains and the factors influencing the process of their storage, ie, the yield of grains is reduced due to cochlear disease, and a sharp deterioration in product quality and objective and correct physical, technological and biochemical properties of grain. The form of production of quality flour as a result of the assessment, its uniqueness, the correct organization and implementation of technological processes of cleaning, preparation and grinding of grain. The purpose of our research is to study the status and modernization of the project of JSC "Ferganadonmahsulotlari", the modernization of advanced production and existing grain cleaning technologies, the physical and chemical properties of local varieties of wheat. One of the main directions in improving the technology of flour production is the creation of an enterprise where grain is efficiently cleaned, moistened and well prepared for grinding, while consuming less electricity.

Ecological Assessment of Non-Target Impact on the Intensity of Human-Induced Changes in Gray Forest Soils

This article presents studies on determining the rate of anthropogenic influences on the gray forest soils sustainability. At present, various pollutants from the atmosphere affect soils. This leads to a decrease in soil fertility, water and air pollution, a decrease in crop yields, and deterioration of product quality. A study of the gray forest soils sustainability to anthropogenic influences incompatible with natural processes is of particular interest to select groups by the degree of anthropogenic transformation. Therefore, the objective of this study was to determine the rate of anthropogenic influences on the grey forest soils sustainability and the degree of their anthropogenic transformation. This requires determining the change in the agrochemical indicators of the fertility of gray forest soils disturbed by overburdened quarrying. Identifying the nature of changes in the texture and micro-aggregate composition of the disturbed soils. Assess the nature of changes in the heavy metals content in gray forest soils of the areas chemically polluted by unauthorized disposal of industrial wastes. Reveal the nature of technogenic load and ecological hazard of industrial waste on the fertile layer of gray forest soils in the chemically polluted area. The research was conducted on an agricultural land site, where soil samples of gray forest soils were extracted. As a result, the gray forest soils’ sustainability to anthropogenic impact, incompatible with natural processes, was assessed. The rates of organic content reduction due to violation of the humus layer were proved. The decrease level of available phosphorus was proved, significant fluctuations for potassium in the soils were revealed. A significant decrease in soil acidity has been confirmed. The influence of chemical pollution of the soil cover by heavy metals has been found out. The intensity of anthropogenic load of industrial waste on the soil depending on the soil contamination levels of heavy metals was revealed.

ОЦІНЮВАННЯ ФІНАНСОВОГО ПОТЕНЦІАЛУ ПІДПРИЄМСТВА

An important element of macroeconomic changes in Ukraine is the problem of achieving economic stabilization and the transition to the development of all sectors of the economy. Ensuring economic growth in the conditions of market transformation requires increasing the efficiency of the use of market tools, a coordinated solution to the tasks of creating appropriate technological, institutional and organizational structures, the main purpose of which is to combine all the necessary elements into one general reproductive contour of the new technological system in order to create favorable conditions for modernization and improvement of the efficiency of the business entity. The lack of a regular cycle of the production process, deterioration of product quality, difficulties in its implementation lead to a decrease in the inflow of funds to the company's accounts, which leads to a deterioration of its solvency. There is also a feedback loop, as a lack of resources can lead to disruptions in the supply of raw materials and, as a result, in the production process. The purpose of assessing the financial condition of the enterprise is to restore the appropriate level of financial stability of the enterprise, to determine its ability to continue economic activity, further development, ensure profitability and increase production capacity, make the right decisions. In general, the financial condition of SE "KHMZ "FED"" can be characterized as steady and stable. The vast majority of indicators of the company's financial success are within the normative values. The company is a reliable borrower, profitability indicators have positive values, but not high enough values to be recognized as efficient. Summarizing the above, it can be concluded that SE "KHMZ "FED"" has a fairly high level of business activity. The company is a reliable creditor and debtor that repays its obligations on time, actively uses its own capital, stocks and fixed assets. When evaluating the economic potential of the company, it is necessary to remember that it is a complex concept and is characterized by a system of indicators that reflect the real situation and the use of the existing potential, the financial capabilities of the company as a business partner, a subject of capital investments, and a taxpayer.

Increasing the efficiency of the extruder in producing sunflower cake

The purpose of the research is to reduce the specific energy consumption of extruders in the protein feed preparation, namely a sunflower cake, and at the same time to increase productivity without product quality deterioration. The research objective is to develop a mathematical model that describes the performance of the improved extruder. As a result of the experimental and theoretical studies using experiment design methods, a mathematical model of the sunflower cake obtainment process was designed, it describes the performance of the improved extruder. The analysis of two-dimensional sections of the combination of X1 - X2 factors shows the nature of the response surface of an ellipsoid shape, X1 - X3, X2 - X3 are of a paraboloid, and the centers of the experiment are located in the investigated area, which allow determining rational parameters for combinations of these factors. As a result of a multifactorial experiment, the optimal values of the factors were determined: the mixture temperature at the exit from the extrusion auger of the matrix is 133.67 °C, the extrusion auger winding pitch is 7.58 mm, the area of the discharge hole of the matrix die is 323.89 mm2. With a combination of factor optimal values, it is possible to obtain high-quality sunflower cake with the highest extruder capacity, which is 0.87 t/h.

Generating decision support for alarm processing in cold supply chains using a hybrid k-NN algorithm

Real-time temperature monitoring is necessary in cold pharmaceutical supply chains (SCs), where exposures to extreme temperatures can lead to product quality deterioration. Temperature alarms (TAs) triggered by the current rule-based systems still require lengthy examinations before a suitable corrective measure (CM) can be chosen. However, provision of additional information relevant to TAs can expedite the examination process.In the related areas of recommender systems and false alarm/anomaly detection, k-nearest neighbors (k-NN) algorithm has proven to be successful because of its interpretability and ease of use. However, in the context of TA processing, it may suffer from some inherent limitations (i.e., varying neighborhood radius, unreliable classifications in sparse and noisy regions, and blindness to natural class boundaries). To overcome these limitations, we propose a hybrid k-NN (Hk-NN) algorithm based on the principles of local similarity and neighborhood homogeneity. It incorporates a two-step voting procedure with an entropy-optimized k-NN radius, decision trees with k-constrained leaves, and nearest neighbor predictions.We investigate 16,525 comments by alarm personnel for TAs in a pharmaceutical SC and encode them in terms of deviation causes and CMs (target features). We use SC data on cargo location, SC phase, sensor role, and temperature characteristics as predictor features for TA similarity estimation. In eight experimental setups, Hk-NN consistently outperforms k-NN with an optimized k in terms of accuracy, balanced accuracy, macro-average precision, recall, and specificity. At the same time, Hk-NN refrains from predicting observations, for which k-NN’s accuracy is close to a random guess.

Effect of Alternative Preservation Steps and Storage on Vitamin C Stability in Fruit and Vegetable Products: Critical Review and Kinetic Modelling Approaches.

Vitamin C, a water-soluble compound, is a natural antioxidant in many plant-based products, possessing important nutritional benefits for human health. During fruit and vegetable processing, this bioactive compound is prone to various modes of degradation, with temperature and oxygen being recognised as the main factors responsible for this nutritional loss. Consequently, Vitamin C is frequently used as an index of the overall quality deterioration of such products during processing and post-processing storage and handling. Traditional preservation methods, such as thermal processing, drying and freezing, are often linked to a substantial Vitamin C loss. As an alternative, novel techniques or a combination of various preservation steps (“hurdles”) have been extensively investigated in the recent literature aiming at maximising Vitamin C retention throughout the whole product lifecycle, from farm to fork. In such an integrated approach, it is important to separately study the effect of each preservation step and mathematically describe the impact of the prevailing factors on Vitamin C stability, so as to be able to optimise the processing/storage phase. In this context, alternative mathematical approaches have been applied, including more sophisticated ones that incorporate parameter uncertainties, with the ultimate goal of providing more realistic predictions.

Joint optimization of pricing, inventory control and preservation technology investment under both quality and quantity deteriorating

This study presents a model for inventory control of deteriorating product in which both quantity and quality deterioration of the products are considered overtime. In this regard, for maximizing the profit, a new model is developed through two concepts: (1) establishing a decreasing pricing policy that depends on quality in order to prevent the decline in demand and product quality deterioration, and (2) investigating the level of investment in preservation technology as a significant solution in affecting the product deterioration rate. Consequently, it maintains the quality of products and increases their expiration date. In addition, the time value of money and inflation are well noticed in making the calculation of financial flows more accurate. To demonstrate the characteristics of the model, two comparative studies are conducted. The first one emphasizes the increase in the total profit of the inventory system caused by dynamic pricing policy, and another establishes the major impact of paying attention to the time value of money and inflation on making decisions.

Combining conventional QTL analysis and whole-exome capture-based bulk-segregant analysis provides new genetic insights into tuber sprout elongation and dormancy release in a diploid potato population

Tuber dormancy and sprouting are commercially important potato traits as long-term tuber storage is necessary to ensure year-round availability. Premature dormancy release and sprout growth in tubers during storage can result in a significant deterioration in product quality. In addition, the main chemical sprout suppressant chlorpropham has been withdrawn in Europe, necessitating alternative approaches for controlling sprouting. Breeding potato cultivars with longer dormancy and slower sprout growth is a desirable goal, although this must be tempered by the needs of the seed potato industry, where dormancy break and sprout vigour are required for rapid emergence. We have performed a detailed genetic analysis of tuber sprout growth using a diploid potato population derived from two highly heterozygous parents. A dual approach employing conventional QTL analysis allied to a combined bulk-segregant analysis (BSA) using a novel potato whole-exome capture (WEC) platform was evaluated. Tubers were assessed for sprout growth in storage at six time-points over two consecutive growing seasons. Genetic analysis revealed the presence of main QTL on five chromosomes, several of which were consistent across two growing seasons. In addition, phenotypic bulks displaying extreme sprout growth phenotypes were subjected to WEC sequencing for performing BSA. The combined BSA and WEC approach corroborated QTL locations and served to narrow the associated genomic regions, while also identifying new QTL for further investigation. Overall, our findings reveal a very complex genetic architecture for tuber sprouting and sprout growth, which has implications both for potato and other root, bulb and tuber crops where long-term storage is essential.

Analisis Of Qulity Control Product Damage At PT.Sinar Jaya Inti Mulya Kota Metro

Damage products that are not in accordance with standards is a major problem for each company, because these problems will cause losses for the company as a result of increasing production costs and lower selling value of products. The quality control system carried out at PT. Sinar Jaya Inti Mulya is still lacking due to a lack of quality control personnel as well as machine maintenance and labor constraints. The purpose of this study was to determine the type and amount of damage that occurred and what factors caused the damage or deterioration of product quality. The method used in this research is explanatory survey method. This type of research is quantitative research with the object of research is product quality control and product damage. Data collection using interviews and documentation. The analytical tool used is to use C Chart analysis, Pareto Chart and Fishbone Analysis. The results of the C Chart analysis research showed that the amount of damage that occurred was still within tolerance limits. The number of product defects based on the order of the number is the highest due to the presence of foreign matter impurities, moisture content and free fatty acid content. The factors that influence product damage are mostly related to workers who do not supervise the production process and lack of quality control personnel as well as other causes such as raw materials and the environment.&#x0D; Keywords: Control of product quality, product damage