Woven Bags Research Articles

Experimental Examination on t he Pneumatic Lifting Method of Deformable Object

Industries such as agriculture and food have used polypropylene bag widely used as it is cheap and easy to find. Fertilizers industry especially needed to use the polypropylene bag that have high protection barrier against the high-level humidity especially we living in Malaysia that have high humidity in the air. By layering the polypropylene bag with another polypropylene bag, the moisture problem can be overcome. The polypropylene bag for fertilizers consists of 2 layers which is the woven polypropylene bag and the clear polypropylene bag. However, when assembling this two-polypropylene bag, worker needed to manually insert the clear polypropylene bag into the woven bag. This increases the time process in production, high labour force needed and also higher cost for mass production. Furthermore, repetitive works can cause strain to the worker and increases the number of errors. To overcome this issue, the automated polypropylene bag assembly system is proposed. For this paper, we only focus on the lifting method of the automated polypropylene bag assembly system. With the used of the automated polypropylene bag assembly system, the repetitive works and labour force can be reduced. This will also give out cleaner and consistent last product.

Efficiency of Triple Bagging System and Lippia multiflora Leaves for the Vitamin Quality Preservation of Cowpea Seeds (Vigna unguiculata L. Walp)

Aims: To assess the effectiveness of triple bagging systems with or without Lippia multiflora leaves on the vitamin-quality of cowpea seeds during storage.
 Methodology: Cowpea seeds that have undergone any treatment were collected from producer in the southwest of Côte d’Ivoire. The fresh leaves of Lippia multiflora were collected and dried in sunlight for 7 days in center of Côte d’Ivoire. The storage bags used were obtained from the suppliers to Côte d’Ivoire in Abidjan. All this material was sent to the Laboratory of Biochemistry and Food Sciences, Felix Houphouet-Boigny University, Côte d’Ivoire to perform the experiment. Thus for the experiment realization, a central composite design (CCD) was used. The first factor of CCD consisted to six types of packaging, namely: one control with polypropylene bag (TST), one triple bagging batch (composed of 2 internal layers in independent high density polyethylene 80 mm thick and a woven bag polypropylene) without biopesticide (H0), and four batches (H1, H2, H3 and H4) containing respectively (0.7%; 2.5; 4.3%; and 5%) biopesticide. The second factor, storage time, it included six periods of observation (0; 1; 2; 4.5; 7 and 8 months). HPLC techniques were used for the separation and quantification of β-carotene, α-tocopherol (vitamin E) and the water-soluble vitamins (thiamine, riboflavin, niacin, pyridoxine and folic acid). The estimated daily intake of folic acid (vitamin B9) was also evaluated for Ivorian adult of 70 kg.
 Results: The results of vitamin properties indicate a significant influence (P < 0.05) between the type of treatments and shelf life. Multivariate analysis results (PCA and AHC) indicate that the addition of at least 0.7% Lippia multiflora leaves in triple bagging systems makes preservation more efficient and preserves the vitamin quality of the cowpea seeds during 8 months. The contribution to meeting vitamin B9 requirements is palpable when cowpea seeds are stored for up to 8 months in the triple bagging systems associated with the biopesticide.
 Conclusion: Cowpea seeds storage in triple bagging systems with Lippia multiflora leaves appears as a method of effective and inexpensive conservation to ensure the vitamin-quality of cowpea.

Carbon Emissions of China’s Cement Packaging: Life Cycle Assessment

China is the largest producer of cement in the world. With this tremendous production of cement, the extensively used cement packaging embodies significant carbon dioxide emissions. However, this has scarcely been investigated. This paper presents the first investigation into three types of cement packaging in China using the life cycle assessment methodology. The carbon dioxide emissions in each production phase of cement packaging were calculated and compared to the emissions in the western, middle, and eastern regions in China. The results show that in the production phase, the consumption of electricity accounted for the highest proportion of total carbon dioxide emissions (23.39–35.14%), followed by the consumption of polypropylene-based material (23.39%). From a packaging perspective, laminated plastic woven bags emitted the most carbon dioxide (0.637 kg/bag), followed by paper–plastic composite bags (0.536 kg/bag) and paper bags (0.022 kg/bag). In regional terms, the western region emitted the most carbon dioxide (3.06 million tons) compared with the eastern (2.01 million tons) and middle (1.81 million tons) regions due to the low bulk rate. Our findings indicate that using paper–plastic composite bags instead of laminated plastic woven bags and using recycled materials instead of new materials in certain production phases can considerably reduce the environmental impacts of cement packaging. The government should encourage the use of non-coal energy power generation for the production phase. Further improvements could focus on the use of bulk cement instead of packaged cement.

Evaluation of Purdue Improved Crop Storage Triple Layer Hermetic Storage Bag against Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) and Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae).

Hermetic technologies are being promoted in Africa as safer and more effective methods of grain storage on smallholder farms. However, farmers and policy makers lack knowledge of their efficacy in controlling major stored grain pests. An on-station study was conducted to evaluate the triple layer Purdue Improved Crop Storage (PICS) airtight bags against two major storage insect pests. Two sets each of PICS, jute and polypropylene bags were filled with 50 kg maize grain per bag. Each set was replicated four times. One set of PICS bags was each infested with 50 insects each of the larger grain borer P. truncatus and the maize weevil S. zeamais; while the other set was not. One set of jute and polypropylene woven bags was treated with a cocktail of 1.6% Pirimiphos methyl and 0.3% Permethrin, serving as positive controls; while the remaining sets with untreated maize grain formed negative controls. Gas analysis in the PICS bags followed the expected trend with oxygen levels falling sharply below 10% and carbon dioxide increasing to almost 10% after 12 weeks hence resulting in insect death. After 16 weeks, increase in oxygen levels may be attributed to perforation of the bags from outside by the P. truncatus. Results showed that PICS bags were significantly (P < 0.05) superior to treated and untreated controls of polypropylene and jute bags in suppressing insect development, maize grain damage and weight loss during storage. Weight loss in polypropylene and jute bags reached 40% and 41%, respectively, at 24 weeks after storage compared to PICS (2.4–2.9%). These results demonstrate that PICS bags can be used to store maize against P. truncatus and S. zeamais attack.

INTEGRASI FONOLOGI BAHASA MINANGKABAU DALAM BAHASA MELAYU BENGKULU

This paper aims to describe the integration of the phonology of the Minangkabau language in the Bengkulu Malay language in sociolinguistic perceptions. The method used in this research is descriptive method. Data were collected using the listening method, with the basic techniques in the form of tapping techniques, free engages involved in competent listening and note taking techniques. The listening is done by tapping into the use of language in the "Belungguk Baso Bengkulu Community". Based on the results of data analysis, the integration of the Minangkabau language in Bengkulu Malay includes phonological aspects. Phonological integration can take the form of phonemes (at the beginning, middle and end), for example [acok] [cok] 'often' [antok] [ntok] 'silent' [jagok] [jgok] 'smart' [ateh] [ateh] 'on'; phoneme additions, for example [angik] [anggit] ‘musty smell’ [mada] [madal] ‘stubborn’; or through the process of changing phonemes ie / a / to / e /, for example [mancalik] [mencelik] 'seeing', [marapek] [merapek] 'docked', / u / being / o /, for example [urang gaek] [orang gaek] 'old man', / u / be / e /, for example [gulamo] [gelamo] 'fish name', / ui? / become / ut /, for example [kambuik] [kambut] 'pandan woven bag’.

THE EFFECT OF THE ADDITION LEVEL OF NEEM LEAF FLOUR (Melia azedarach LINN) ON THE QUALITY OF SHELLED CORN DURING STORAGE

This study aims to evaluate how the effect of the addition level of neem leaf flour (Melia azedarach Linn) on the quality of shelled corn during storage. The research material used was neem leaves, shelled corn, storage containers and analytical equipment. Neem leaves are given in the form of flour with a size of 60 mesh while corn used in shell corn with water content and aflatoxin content before storage are 20% and 110 ppb respectively. Shelled corn was used as much as 1 kg for each treatment and stored in modified woven bags for 4 weeks. The research method is an experimental method using a completely randomized design (CRD), with 4 treatments and 4 replications. The treatments were the percentage of neem leaf flour addition in shelled corn, the four treatments were treatment A (0% neem leaf flour), B (2.5% neem leaf flour), C (5% neem leaf flour), and D ( 7.5% neem leaf flour). Parameters measured were percentage of damaged seeds, percentage of moldy seeds, moisture content and aflatoxin content. The results of the study showed that the treatment had a highly significant effect (P&lt;0.01) on% of damaged seeds, % of moldy seeds, and aflatoxin content on shelled corn during storage. The administration of neem leaf flour at 2.5% level was able to maintain the quality of shelled corn during storage, where the aflatoxin content could decrease from 110 ppb before storage to 34,25 ppb after being stored for 4 weeks.&#x0D; Keywords: neem (Melia azedarach Linn), shelled corn, storage, aflatoxin

Assessment of oxygen sequestration on effectiveness of Purdue Improved Crop Storage (PICS) bags in reducing carotenoid degradation during post-harvest storage of two biofortified orange maize genotypes

Increasing adoption of biofortified orange maize in developing countries requires economical storage methods to manage product quality and carotenoid retention. This study assessed the utility of the Purdue Improved Crop Storage (PICS) bags with a specific focus on retention of provitamin A and other carotenoids in two biofortified maize genotypes (OPVI and OPVII). Grain was stored at ambient conditions for eight months in PICS bags with and without an O2 scavenger, (PICS-oxy) and (PICS-noxy), respectively, or in common polypropylene woven bags. After 4 months of storage carotenoid content was significantly higher (p < 0.05) in grain stored in PICS-oxy compared to PICS-noxy or woven bags demonstrating the importance of entrapped oxygen on maize carotenoid degradation. Differences were observed in stability between the two mize genotypes. After 8 months, carotenoid stability remained dependent on storage bag and genotype with retention being greater in PICS-oxy and PICS-noxy compared to woven bags and OPVI maintained a higher carotenoid retention than OPVII maize. Oxygen content and genotype were determining factors in the effectiveness of PICS to mitigate carotenoid degradation during post-harvest storage.

Mycotoxin concentrations in rice from three climatic locations in Africa as affected by grain quality, production site, and storage duration.

Information on the mycotoxin contamination of rice in Africa is limited although the risk of contamination is high. In this study, domestic milled rice processed by actors using suboptimal methods was purchased and total fumonisin (FUM), zearalenone, and aflatoxin concentrations determined at 0, 90, and 180 days after storage. Three different climatic locations, Cotonou (Benin) in the Guinea savanna, Yaoundé (Cameroon) in the Tropical forest, and N'diaye (Senegal) in the Sahel, were selected as storage sites. Subsets of the samples collected from Glazoue (Benin), Ndop (Cameroon), and Dagana (Senegal) were stored in plastic woven bags under room conditions in the respective sites with or without calcium oxide (burnt scallop shell—BSS, 0.1% w/w) treatment. Multivariance analysis showed that FUM concentration was positively influenced by the duration of storage only while zearalenone concentration was negatively influenced by relative humidity and head rice but positively by impurities. Zearalenone concentration was also influenced by sample collection/storage location, processing type, and duration of storage. Aflatoxin concentration was influenced negatively by storage room temperature and head rice but positively by impurities and chalky grains. In addition, aflatoxin concentration was influenced by collection/storage location and processing type. BSS treatment followed by storage for 6 months had no effect on the concentration of the three assessed mycotoxins. Strategies to reduce the risk of mycotoxin contamination in study sites will include the improvement of physical rice quality through better pre‐ and postharvest practices and proper packaging of both treated rice and untreated rice in hermetic systems before marketing and storage.

Post-storage changes of volatile compounds in air- and sun-dried raisins with different packaging materials using HS-SPME with GC/MS

Free- and bound-form volatiles in sun-dried raisins (SDRs) and air-dried raisins (ADRs) of ‘Thompson Seedless’ were analyzed by gas chromatography–mass spectrometry (GC/MS) for 0, 3, 6, 9 and 12 months of storage. The compounds originating from glycosidically bound (GB) volatiles were significantly more abundant in bound-form than their free-form. A total of 89 and 88 free-form compounds were identified in ADRs and SDRs, respectively. Overall, higher concentration of unsaturated fatty-acid-oxidation (UFAO) and Maillard reaction (MR) compounds were observed in the SDRs. The plastic and woven bags have an insignificant effect on the volatiles in the raisins. The main characteristics of ADR aroma were floral and fruity, while fatty, roasted, and chemical aromas were prominent in SDRs. With the exception of chemical aroma, the aromatic series (fruity, floral, herbaceous and roasted) increased during the storage duration and become more compelling in 12 month. The packaging materials have similar effect on aromatic series, except fruity note, which was higher in woven bag. The main floral and fruity aroma contributors were decanal, β-ionone, ethyl hexanoate, β-damascenone, and 1-octen-3-ol. Herein we identified UFAO and MR compounds as the main contributors of raisin aromas.

Stick-slip behavior of reversing the tubular woven bag covering a rigid tube-theoretical and numerical studies

Abstract A tubular woven bag covering a rigid tube, known as a crucial component in flexible tube coring system adopted for future lunar soil coring missions, which dynamic performance, especially the stick-slip behavior, might largely affect the reliability and quality of the lunar soil coring, should be explored in depth. In this study, we have developed analytical formulation and high fidelity finite element (FE) model to investigate the stick-slip behavior of the tubular woven bag covering a rigid tube in the turning inward process. The theoretical model is established via dividing the whole process into the unfolding and the detaching periods. The FE model is efficiently established and solved by using nonlinear finite element code LS-DYNA. Results demonstrate that good agreement can be realized between the numerical results and the theoretical ones. Moreover, based on the developed theoretical model, parametric analysis of the stick-slip process is performed to quantify the effects of the key parameters, including the mass, damping and stiffness of the woven bag, the driving velocity, the pressure on the bag, and the initial wrinkle ratio, on the stick-slip behavior. The findings from this study can provide practical and important guidance for designing the deep lunar soil coring system with high stability and reliability.

Effect of bunch covers and spray of potassium sulphate on yield and quality of banana

Banana bunch cover is a physical protection method which will improve the visual quality of fruit by promoting skin colouration and reducing blemishes, but can also change the micro-environment for fruit development and reduce the incidence of diseases and insect pest and/or mechanical damage and sunburn of the skin. The investigation was carried out in the farmers’ field, Burhanpur during 2015–16, 201617 and 2017–18 in order to find out the best bunch cover materials and spray of potassium sulphate on banana bunch. The highest finger length, finger girth and bunch weight were recorded in white non- woven polypropylene bag, while lowest in the uncovered. Yield characters like finger length, finger girth and bunch weight was recorded maximum in treatment (T5) and ultimately yield in white non- woven polypropylene bag + potassium sulphate @ 20 ml bunch−1 (60.11 t ha−1) which were lowest in the control T1 (51.33 t ha−1).

Field study of a retaining wall constructed with clay-filled soilbags

This paper presents a field study of constructing retaining walls using soilbags that are formed by filling the excavated clayey soils into woven bags (geosynthetics). The strength and deformation of the soilbags filled with clayey soils were studied via laboratory tests. A 100 m testing retaining wall was constructed with soilbags in a waterway project. The lateral deformation, the lateral pressures and the surface settlements of the testing retaining wall were monitored during construction and after 7 months operation. The results show that the soilbags can increase the strength of clayey soils. After 7 months of the completion, the lateral deformation and the surface settlement of the testing retaining wall tend to be stable with the maximum values of 29.4 cm and 19.2 cm, respectively. The lateral earth pressure on the front retaining structure could be positively reduced owing to the interlayer's friction of soilbags. Compared to the conventional gravity concrete retaining wall, about 38% construction cost was saved in the 100 m testing retaining wall.

Manfaat Ekonomi Pengrajin Anyaman Di Kampung Arborek Kecamatan Meosmansar Kabupaten Raja Ampat

&#x0D; &#x0D; &#x0D; The purpose of this research is to know the benefits of tourism coast economy are felt directly by the local people in Meosmansar Subdistrict, Raja Ampat Regency. The case study taken from the local people of Arborek Village which is a tourism village that has hand-crafed in the form of woven hats and bags of leaf mats. The type of data in this study used qualitative data. The data sources used are primary data and secondary data. The data are collected through by observation, indepth interviews with the some of the interviewees and as well as documentation. The technique of determination of the informant used in this research is purposive sampling. The informants which is selected in this study are representative of the local government in this case the Tourism and Culture officer of Raja Ampat Regency as well as the local community whose doing business craftsmen woven hats and bags. The data are collected is analyzed using the concepts of economic benefits by Leiper. The results of this study found the presence of perceived economic benefit directly by the local communities from tourism sector.&#x0D; Keywords: Economic Benefit, Local Community, Plating Handcraft, Arborek Village&#x0D; &#x0D; &#x0D;

Evaluation of AgroZ Hermetic Storage Bag against insect pests on stored maize

A study on AgroZ airtight bag was conducted against two major storage insects under simulated farmers' storage practice. Two (2) lots of 50kg white maize of Pioneer variety were put into AgroZ bag and polypropylene woven bag to serve as a control. Four replications of each bag type were used. In each bag, 50 adults of unsexed larger grain borer, Prostephanus truncatus, and maize weevil, Sitophilus zeamais, each were introduced. AgroZ bag had one liner placed inside polypropylene bag to provide support and handling convenience. Each liner had been tested for air tightness before use. The AgroZ bags were securely tied to ensure airtightness thus leading to a hermetic environment. The bags were then randomly placed in a barn on pallets in a randomised complete design (RCD). Sampling was done every 4 weeks up to 24 weeks. A 500g sample was initially taken using a compartmented long spear probe from each bag for baseline data, and subsequent ones at 4, 8, 12, 20 and 24 weeks. Repeated sampling from the same storage device reflected farmer practices of opening the device at regular intervals to draw grain for use as household food. Gas analysis in AgroZ bags showed oxygen level dropping rapidly to 7% within 4 weeks and later increased gradually to 10% at 12 weeks. Conversely, carbon dioxide level increased sharply to 10% and declined gradually to 9% over the same period. The number of insects and percentage damaged grains between AgroZ bag and polypropylene bag significantly differed from 12th week to 24th week. AgroZ bag outperformed the polypropylene bag commonly used by farmers and conveniently protected maize from insect infestation within the 6-month storage period.

Changes in the Fungal Microbiome of Maize During Hermetic Storage in the United States and Kenya.

Prior to harvest, maize kernels are invaded by a diverse population of fungal organisms that comprise the microbiome of the grain mass. Poor post-harvest practices and improper drying can lead to the growth of mycotoxigenic storage fungi and deterioration of grain quality. Hermetic storage bags are a low-cost technology for the preservation of grain during storage, which has seen significant adoption in many regions of Sub-Saharan Africa. This study explored the use of high-throughput DNA sequencing of the fungal Internal Transcribed Spacer 2 (ITS2) region for characterization of the fungal microbiome before and after 3 months of storage in hermetic and non-hermetic (woven) bags in the United States and Kenya. Analysis of 1,377,221 and 3,633,944 ITS2 sequences from the United States and Kenya, respectively, resulted in 251 and 164 operational taxonomic units (OTUs). Taxonomic assignment of these OTUs revealed 63 and 34 fungal genera in the US and Kenya samples, respectively, many of which were not detected by traditional plating methods. The most abundant genus was Fusarium, which was identified in all samples. Storage fungi were detected in the grain mass prior to the storage experiments and increased in relative abundance within the woven bags. The results also indicate that storage location had no effect on the fungal microbiome of grain stored in the United States, while storage bag type led to significant changes in fungal composition. The fungal microbiome of the Kenya grain also underwent significant changes in composition during storage and fungal diversity increased during storage regardless of bag type. Our results indicated that extraction of DNA from ground kernels is sufficient for identifying the fungi associated with the maize. The results also indicated that bag type was the most important factor influencing changes in fungal microbiome during storage. The results also support the recommended use of hermetic storage for reducing food safety risks, especially from mycotoxigenic fungi.

Implementasi Algoritma Wagner-Within pada Manajemen Inventori di PT X

The increasing competition in the manufacturing industry caused increasing inconsumer demand of the quality and quantity of a good product. Therefore, manufacturing companies must have reliable services, policies and product qualities to satisfy its customers. So it needs to be supported by efficient production system and inventory system. To able to create an efficient production system then need a good raw material inventory planning. This research aims to compere how efficiently in planning raw materials inventory between Wagner-Within Algorithm with the actual concept that applied to PT X, Sidoarjo. The methodology of this research is qualitative descriptive research. The findings this research is engaged in packaging (woven bag and jumbo bag) with main raw materials such as plastic ore and supporting material in inner, thread, additive, and pigment. Based on the result of the analysis is known that the actual concept of the company gives the total inventory cost IDR 3.151.000.000 with the frequency of ordering 12 times while WagnerWithin Algorithm method provides a more efficient total inventory cost of Rp. 2.685.821.101 with8 times the frequency of ordering and can savings of 14.8% of total raw material inventory cost.

The Relationship Between Shift Work and Work Stress, and Its Impact on Hypertension on The Woven Bag Factory Workers in East Java Indonesia

The Relationship Between Shift Work and Work Stress, and Its Impact on Hypertension on The Woven Bag Factory Workers in East Java Indonesia

“The Bag Is My Home”: Recycling “China Bags” in Contemporary African Art

“The Bag Is My Home”: Recycling “China Bags” in Contemporary African Art

An Overview of the Post-Harvest Grain Storage Practices of Smallholder Farmers in Developing Countries

Grain storage loss is a major contributor to post-harvest losses and is one of the main causes of food insecurity for smallholder farmers in developing countries. Thus, the objective of this review is to assess the conventional and emerging grain storage practices for smallholder farmers in developing countries and highlight their most promising features and drawbacks. Smallholder farmers in developing countries use conventional grain storage structures and handling systems such as woven bags or cribs to store grain. However, they are ineffective against mold and insects already present in the grain before storage. Different chemicals are also mixed with grain to improve grain storability. Hermetic storage systems are effective alternatives for grain storage as they have minimal storage losses without using any chemicals. However, hermetic bags are prone to damage and hermetic metal silos are cost-prohibitive to most smallholder farmers in developing countries. Thus, an ideal grain storage system for smallholder farmers should be hermetically sealable, mechanically durable, and cost-effective compared to the conventional storage options. Such a storage system will help reduce grain storage losses, maintain grain quality and contribute to reducing food insecurity for smallholder farmers in developing countries.

Effects of packaging materials on storage quality of peanut kernels

In order to obtain optimum packaging materials for peanut kernels, the effects of four types of packaging materials on peanut storage quality (coat color, acid value, germination rate, relative damage, and prevention of aflatoxin contamination) were examined. The results showed that packaging materials had a major influence on peanut storage quality indexes. The color of the peanut seed coat packaged in the polyester/aluminum/polyamide/polyethylene (PET/AL/PA/PE) composite film bag did not change significantly during the storage period. Color deterioration was slower with polyamide/polyethylene (PA/PE) packaging materials than with polyethylene (PE) film bags and was slower in PE bags than in the woven bags. The use of PET/AL/PA/PE and PA/PE bags maintained peanut quality and freshness for more than one year and both package types resulted in better germination rates. There were significant differences between the four types of packaging materials in terms of controlling insect pests. The peanuts packaged in the highly permeable woven bags suffered serious invasion from insect pests, while both PET/AL/PA/PE and PA/PE bags effectively prevented insect infection. Peanuts stored in PET/AL/PA/PE and PA/PE bags were also better at preventing and controlling aflatoxin contamination.