Industrial Mill Research Articles

Sustainable Management of Agro-Food Wastes Derived from the Olive Mill and Sugar Industry and Clinoptilolite to Produce Novel Adsorptive Materials

Novel sorbents were produced using sustainable and eco-friendly methods, aimed at minimizing environmental impact while utilizing industrial by-products and natural minerals. Olive stones and molasses derived from olive mill and sugar industries, respectively, and an abundant, natural and low-cost mineral, clinoptilolite, were combined in the following proportions: 80/20 clinoptilolite/stone, 80/10/10 clinoptilolite/stone/molasses, 50/50 stone/molasses, w/w. Then, physical carbonization (CL80OL20C, CL80OL10M10C, OL50M50C) or chemical activation (CL80OL20A, CL80OL10M10A, OL50M50A) took place. The adsorbents were characterized through Raman, FT-IR, BET and SEM-EDS analysis. The CL80OL20A material presents the highest ratio of C/O in EDS analysis and the lowest ID/IG in Raman spectroscopy. The increase in the specific surface area is as follows: OL50M50C < OL50M50A < CL80OL10M10C < CL80OL20C < CL80OL20A < CL80OL10M10A. Three applications were conducted: two with dyes (methylene blue and methyl red) in aqueous means and one in olive mill wastewaters for the removal of total phenols and their addition to rice, increasing the total phenolic content and producing novel foods. The well-fitted application of the pseudo-second order kinetic model to the experimental data has shown that chemisorption is the prevailing mechanism. The adsorbed amount of the recovered phenols to rice ranges from 0.14 to 0.93 mg/g. Consequently, olive and sugar by-products can be used as filters either to adsorb dangerous organic compounds or to recover bioactive compounds from wastewater, preventing their disposal in the environment, which could otherwise lead to severe negative effects on the ecosystems.

Modeling of Carbon Footprint Emissions in Sugarcane Production Using System Dynamics

Objective: This study proposes a model aimed at estimating and reducing carbon emissions in sugarcane cultivation and juice extraction, designed for potential application in real-world systems. Method: The model grounded in a hypothetical case study of a 60-hectare sugarcane plantation in a warm climate with a 7-month growth cycle and a three-year simulation period, focuses on estimate and evaluate mitigation scenarios to decrease emissions from fuel and electricity usage in activities such as plowing, sowing, harvesting, and irrigation. Utilizing Vensim PLE, a System Dynamics model that combine event and dynamic simulation. Results and Discussion: Utilizing Vensim PLE, a System Dynamics model that combine event and dynamic simulation estimated a 3060.81 tons CO2 equivalent carbon footprint. Two scenarios aimed at footprint reduction were tested: substituting electrical energy with solar power reduced the footprint by 86% to 450.092 tons, demonstrating clean energy's efficacy. Conversely, replacing an industrial mill with the traditional trapiche technique for juice extraction yielded a mere 1% reduction, indicating its ineffectiveness for real-world application. Research Implications: This study emphasizes the development of a simulation model based on system dynamics to estimate the carbon footprint emissions in sugar cane production considering its cultivation and juice extraction. The results support that through simulations, it is possible to determine the factors that influence the generation of carbon dioxide, offering a broader vision to establish and implement mitigation measures such as adopting clean energies and reducing fuel consumption. Originality/Value: This research contributes to the understanding of the application of system dynamics by using software such as Vensim PLE to estimate the carbon footprint emissions in sugar cane production, considering its cultivation and juice extraction. The results found through simulations suggest the implementation of mitigation measures such as the adoption of clean energies and the reduction of fuel consumption.

Regulation effectivity to sustainable competitive advantage on rice mill industry evidence Indonesia

The purpose of this study is to analyse and prove the impact of regulatory effectiveness on the supply chain and its impact on sustainable competitive advantage for rice milling companies in Indonesia. The research method used was a quantitative analysis, employing a sample of 200 rice milling companies in East Java. The results of this research indicate that regulations do not have a significant effect on the supply chain, Regulations do not have a substantial effect on sustainability Competitive Advantage, Supply chain has a significant impact on sustainable competitive advantage, in addition, flexibility management can moderate the relationship between the supply chain and sustainable competitive advantage, but flexibility management is not able to moderate the regulatory relationship with sustainable competitive advantage.

First use of Chironomid Pupal Exuvial Technique in freshwater biomonitoring in Cameroon: Ecological aspect and morphological description of Chironomidae (Insecta: Diptera)

The biodiversity of urban streams is gradually degrading as a result of anthropogenic pollution. In this study, chironomid pupal exuviae were used as surrogates to assess urban streams and a lake in Douala Cameroon. We compared these assessments with samples collected from a suburban forest stream. Based on their highly adaptive capability, we predicted that chironomid communities would present high diversity and abundance in urban habitats. Chironomid pupal exuviae were collected using the chironomid pupal exuvial technique in 14 urban and 2 forest reference stations during dry and rainy seasons. Measurements of the environmental variables were done simultaneously. Physicochemical analysis revealed that all urban sites have had very poor ecological health status whereas forest site had good water quality as shown by the hierarchical cluster analysis. This ecological survey identified 8 species/morphotypes of chironomids all belonging to the subfamily Chironominae, tribe Chironomini. These are Chironomus holomelas(?), Chironomus sp.1, Chironomus sp.2, Chironomus sp.3, Chironomus (Lobochironomus) sp., Stenochironomus sp., Dicrotendipes sp. and Dicrotendipes pulsus. No midge pupal exuviae were recorded at the forest stations (S1 & S2) and the stations S6 and S7 located downstream industrial mill effluents. The species richness of the study sites was significantly very low as compare to other Afrotropical studies. Canonical redundancy analysis revealed that high values of water temperature, ammonium, nitrates and phosphates, and low oxygen concentration were significant predictors of the distribution and high abundance of Chironomidae. This survey highlighted the impacts of anthropogenic activities on chironomid diversity and distribution, with great decrease of their diversity due to industrial pollution.

Exploring Role of Organizational Learning, Job Satisfaction and Organizational Commitment on Employee Performance at National Rice Milling Industry

Improving employee performance is the main goal for every organization in achieving sustainable success and growth. Organizational learning, work satisfaction, and organizational commitment are examples of internal elements that must be taken into account in order to attain maximum performance. The purpose of this study is to ascertain how employee performance is affected by organizational learning, job satisfaction, and organizational commitment. The researcher used quantitative research methods, using descriptive research. Employees will be the target population for researchers. Researchers used non-probability sampling, with a sample size of 100 respondents. Data collection was carried out through two main techniques, namely interviews and questionnaires. With the use of smartPLS 3.0 software, the Partial Least Squares (PLS) approach is used for data analysis in this study. Numerous findings were obtained for this study based on the outcomes of the hypothesis testing. Work satisfaction and organizational learning have a strong positive correlation. Organizational learning and organizational commitment have a strong positive correlation. There is no discernible connection between worker performance and organizational learning. There is no discernible link between worker performance and job satisfaction. Employee performance and organizational commitment have a strong positive correlation. As a result, the study's findings help to clarify the variables influencing worker performance, organizational commitment, and job happiness.

Energy saving potential in steam systems: A techno-economic analysis of a recycling pulp and paper mill industry in Morocco

The industrial sector represents nearly 40 % of global energy consumption, with steam systems accounting for 30 % of energy use in manufacturing. As the need for cleaner processes intensifies within African and global energy transitions, adopting energy efficiency practices becomes imperative. Governments are focusing on reducing energy losses in fossil fuel-dominated manufacturing industries, which are major producers of greenhouse gas emissions. Despite their significant energy consumption, industrial heat processes are often overlooked in efforts to reduce costs and emissions. To address this, the study examines thermal energy processes and identifies energy-saving opportunities within steam systems through a techno-economic analysis of a recycling pulp and paper mill in Morocco. This is the first study focusing specifically on steam systems within a particular industry in the country. The research uses a system approach covering steam generation, distribution, end-use, and recovery. The current system is benchmarked through a rating questionnaire, and proposed energy-saving actions include leak repair, pipe insulation, blowdown management, and improved boiler combustion efficiency. An economic study evaluates the cost-effectiveness of these opportunities. Findings reveal a 6 % reduction in thermal energy consumption, annual savings of $417 899 and nearly 482 TJ, a 6 % decrease in GHG emissions (2158.5 tons of CO2 per year), and water savings of approximately 5300 m³ per year (13 %). The total investment of $8750 has negligible payback periods. Despite diverse industrial activities, this work is useful for other industries since the fundamental components of the steam system are widely shared. Moreover, it supports the African Union's Agenda 2063 and United Nations Sustainable Development Goals by providing practical insights and recommendations for enhancing industrial energy efficiency.

Distribution of moniliformin in industrial maize milling and flaking process

Moniliformin (MON) is a widespread emerging mycotoxin often occurring in maize at significant levels. Few published studies investigated MON redistribution in maize-derived products for human consumption; to better understand this issue, 5 maize lots with different levels of MON contamination were processed following an industrial milling process to evaluate the redistribution of the mycotoxin in final products (grits), by-products destined to feed (bran and flour) and cleaning waste. MON was quantified by LC–MS/MS after the purification step through the SPE column; moreover, a confirmatory method based on MON derivatization with 1,2-diamino-4,5-dichlorobenzene was developed. Relevant MON reduction was obtained after sieve cleaning, scourer process, and optical sorting, achieving a decrement of the concentration level close to 70%. The following other milling procedures showed a limited reduction from cleaned maize to small and large grits; considering the entire industrial process, the reduction percentage of MON contamination in the final products was 80.9 ± 9.3% and 81.0 ± 6.7% for small and large grits, respectively. The flaking process showed a very limited reduction of MON, close to 10%. Considering the widespread of MON occurrence in maize, the study highlights the importance of cleaning steps to achieve a low risk of exposure for the consumer.

Heterarchical modelling of comminution for rotary mills: part II—particle crushing with segregation and mixing

In granular media, the crushing of individual particles is influenced by the number of contacts with neighbouring particles. This well-known phenomenon of “cushioning” shields the individual particles from crushing when the number of contacts is high. However, in open systems that involve extensive granular flow and bulk motion, like those found in industrial mills, the neighbouring particles continually exchange positions due to segregation and mixing, thereby altering the number of neighbouring contacts and their sizes, affecting the crushing of individual particles. Therefore, a critical challenge for properly modelling comminution in such systems lies in tracking the fluxes of the various particle size classes. Here, we explore the physics that governs the mechanisms of segregation and mixing within the multiscale heterarchical modelling paradigm. Building upon the framework developed in Part I, which integrated the heterarchical aspects of the physics of crushing along streamlines, we further account for segregation and mixing, and demonstrate their impact on the comminution efficiency of autogenous grinding mills. In particular, segregation is shown to greatly enhance the extent of particle crushing within the mill. Accordingly, we posit that this mechanism cannot be ignored. In summary, the new model sheds light on previously obscured dynamics within industrial mills, as well as enables the field to predict the time evolution of the particle size distribution at any point in the mill domain. This modelling capability opens the doors to new developments for estimating and improving milling efficiencies.Graphical

Evaluation of Cost and Return Analysis and Determinants of Profitability of Sawmill Industry in Ogbomoso Area of Oyo State, Nigeria

The study examined cost and return analysis and determinants of profitability of saw mill industry in Ogbomoso area of Oyo state, Nigeria. Multi-stage sampling procedure was employed to select seventy-six (76) saw millers in the study area. Detailed questionnaire was used to obtain relevant information from the respondents. Budgetary analysis was used to calculate the profitability while regression analysis was used to determine factors affecting the profitability of the sawmill. About thirty-six percent (36%) of the respondents fell within the age range of 51 -60 years, eighty three percent (83%) were males and ninety two percent 92% engaged in saw milling as the only source of livelihood. The result of the budgetary analysis showed that total variable cost was (TVC) ₦1,044,142, Total fixed cost (TFC) was ₦65,774.5 while the total cost (TC) was computed as ₦1,109,917.4 and total revenue (TR) was ₦1,721,573. The profit realized was ₦611,655.6 and the gross margin was₦ 677430.1 while the BCR was 1.55. The result of the regression analysis showed that number of trained sawyers (P<0.1), source of capital (P<0.1) and quantity of plank sold (P<0.05) and type of conversion machine used (P< 0.05) increased the profitability of sawmill business in the study area. The study recommended that old/obsolete machineries should be replaced and respondents’ proper training is paramount to an efficient saw milling operation.

The effect of operating conditions on neutral sulphite semi-chemical pulping properties: an industrial pilot plant study

The influence of pulping variables on the pulp and black liquor properties for a neutral sulphite semi-chemical pulping system was investigated in a pilot plant pulping setup situated at an industrial paper mill. Eucalyptus chips were used as raw material and the operating variables were Na2SO3 charge (8–18% w/w on oven-dry wood), Na2CO3 charge (0.5–3.0% w/w on oven-dry wood) and maximum cooking temperature (160–180 °C). Response surface methodology was used to parametrize empirical models to find the optimal conditions for maximizing the short-span compression strength index of the pulp. The derived regression models for the black liquor properties and the pulp hypo number had R2-adjusted values above 0.8 and p-values for overall significance below 0.05. The derived regression models for the handsheet strength properties had R2-adjusted values between 0.3 and 0.45 and p-values for overall significance either below 0.05 or between 0.05 and 0.1. The sulphite charge, followed by the carbonate charge, had the most notable effect on the evaluated properties with the effects of temperature being less significant. Optimization of the pilot plant system showed that the short-span compression strength index of the pulp could be maximized to 26.7 N m/g, using a sulphite charge of 9.4% (w/w on oven-dry wood) and a carbonate charge of 1.94% (w/w on oven-dry wood), similar to short-span compression strength indices typically achieved using other pulping processes.

Enriched photocatalytic degradation of chlorophenols and mineralization of industrial effluents using DUT-8(Zn/Ni)@CeO2 composites

A composite DUT-8(Zn/Ni)αCeO2 photocatalysts were configured using a simple and facile hydrothermal method and characterized using PXRD, SEM, BET, FTIR and Photoluminescence studies to configure their morphological, structural as well spectroscopic characteristics. The as obtained composites demonstrate superior photocatalytic activity for the degradation of dichlorophenols (2, 4 and 2, 6 DCP). The introduction of MOF into the semiconductor oxide proliferate the photocatalytic activity owing to a strong interface between the two that promotes the transfer as well as the separation of photo generated charge carriers. These nanocomposites DUT-8(Zn)@CeO2 and DUT-8(Ni)@CeO2 appear highly promising then the individual counterparts as they record the photodegradation efficiency of (86%, 89%) for 2,4-DCP, and (85%, 91%) for 2,6-DCP respectively at optimal conditions (concentration of pollutants-5 mg/L; catalyst dose-0.6 g/L and pH-8). The practical applicability of the nanocomposites was evaluated using mineralization study involving the industrial effluents of the paper mill industry. Notably, the mineralization of chlorophenols (85.3% for 2,4-DCP, and 87% for 2,6-DCP) was observed in case of DUT-8(Zn)@CeO2 and DUT-8(Ni)@CeO2 nanocomposites. Besides, the synthesized photocatalysts show high stability and reusability for over five experimental cycles.

Assessing the Environmental Impact of Empty Fruit Bunches for Electricity Generation in Malaysia: A Life Cycle Perspective

Abstract Empty fruit bunches (EFB) constitute a significant residual byproduct of the palm oil mill industry in Malaysia, representing approximately 22% of the weight of every fresh fruit bunch. This study aims to evaluate the environmental impacts associated with electricity generation utilizing EFB as a primary fuel through a cradle – to – grave life cycle assessment (LCA) approach. The system boundary encompasses the power plant construction, fuel preparation, electricity generation and all transportation activities throughout its life cycle. The EFBs are sourced from seven palm mills situated within a 50-kilometer radius of the plant. SimaPro 9.4.02 software integrated with Ecoinvent 3.8 database was employed to quantify the magnitudes of significant environmental indicators, such as global warming potential (GWP), ozone depletion potential (ODP), acidification potential (AP), eutrophication potential (EP), and photochemical oxidant creation potential (POCP), based on a functional unit of 1 kWh of electricity produced. The emission rate for the biomass plant stands at – 5.31 kgCO2eq/kWh, signifying a net carbon sink. The electricity generation process accounts for a substantial 96.48% of the total CO2eq/kWh emissions, thus bearing the greatest environmental burden. The construction phase of the biomass plant contributes approximately 3.06% of the total emissions, while the EFB transportation to the power plant represents a minor 0.19% of the overall emissions. A sensitivity analysis was conducted to evaluate the plant’s efficiency across fiscal years 2018 to 2021 and its corresponding global warming impacts. In 2021, the plant’s operations resulted in the most significant carbon avoidance, given the combustion of a high volume of EFB (188 kilotons) to produce 49.3GWh of electricity. The findings from this study serve as a valuable benchmark for evaluating emissions in the context of the empty fruit bunch-based plant in Peninsular Malaysia, hence offering profound insights into the environmental sustainability of the palm oil industry.

The Geographical Components of Grain Milling Industry in Thi- Qar Governorate

This study aims to explore the geographical components of the grain milling industry in Thi- Qar Governorate in 2023. The research is divided into two main sections: the first section addresses the key indicators of the development of the grain milling industry in Thi-Qar Governorate for the period 2011-2021, while the second section examines the geographical components of the grain milling industry in Thi-Qar Governorate. The study concluded that the governorate possesses many natural and human geographical components that have contributed to the localization of the grain milling industry. However, the study's findings indicated that the industrial sector has not invested in these components. Furthermore, the grain milling industry holds economic importance by providing job opportunities and reducing unemployment. The study aims to understand the indicators of the development of the grain milling industry in Thi- Qar Governorate, as well as the role of geographical components in localizing this industry in the governorate.

Relationship between intellectual capital and firm performance: evidence from the Indian sugar mill industry

PurposeThe aim of the study is to examine the influence of Intellectual Capital (IC) and its components on the financial performance of Indian sugar mill companies.Design/methodology/approachThe present study follows the quantitative research, and uses data from Indian sugar mill companies over the period of recent 10 years. The Modified Value- Added Intellectual Capital (MVAIC) method is employed to evaluate IC. Authors construct panel regression models to test the hypotheses where Return on Equity (RoE) and Return on Asset (RoA) were considered as a representation of financial performance (dependent variable) and IC has been considered as the independent variable along with control variables.FindingsThe findings reveal that IC components show greater explanatory power than aggregate IC and MVAIC has a positive relationship with firm performance. It is evident that Capital Employed Efficiency (CEE) and Relational Capital Efficiency (RCE) have a positive effect on the RoA, while Human Capital Efficiency (HCE) and CEE have a positive impact on RoE. CEE is found to be a highly significant component to explain the financial performance of Indian sugar mill firms.Practical implicationsThe study has practical implications for the policymakers for effective utilization of IC resources for worth enhancement which is essential for the improvement of financial performance.Originality/valueThe research extends the literature of IC by linking it to the financial performance of Indian sugar mill industry.

Investigation of Rhizopus oligosporus Metabolites in Fermented Wheat Bran and Its Bio Function in Alleviating Colitis in Mice Model.

Wheat bran (WB) is a low-value by-product of the wheat milling industry. Solid-state fermentation with Rhizopus oligosporus is performed to improve WB's nutritional quality (RH). Twenty-five mice (11-week-old C57BL/6N male mice) were divided into three groups. The first group was fed a control diet (n = 8), the second group a 10% WB-supplemented diet (n = 8), and the last group had a 10% RH-supplemented diet (n = 9). The diet treatment was administered for 4 days before dextran sodium sulfate (DSS, 3% in drinking water) was administered for 9 days. RH supplementation prevented bodyweight loss and reduced the disease activity index in mice. An increase in the level of SCFAs in mouse intestines was detected post-RH supplementation, suggesting that SCFAs might have contributed to its anti-colitis effect. Metabolome analysis was conducted to explore other bioactive compounds in RH. R. oligosporus fermentation significantly increased the amounts of ergothioneine, arginine, branched-chain amino acids, and adenosine in wheat bran. All of these compounds are known to have antioxidant and anti-inflammatory capacities. These bioactive compounds might also have contributed to the RH's ability to ameliorate DSS-induced colitis.

Analyzing the Eucalyptus Timber Value Chain in Thailand: Profit Distribution and Opportunities for Improvement

The Thai forestry sector relies greatly on Eucalyptus as a raw material. The rapid expansion of plantations during the last few decades and the high demand for Eucalyptus for several purposes has led to numerous supply chain practices. A comprehensive understanding of the Eucalyptus value chain is lacking in Thailand, which has consequences for optimization, sustainability, and profitability aspects. This study analyzed actors and their activities along the value chain and estimated added value and profit margin benefit distributions. The study method involved a value chain analysis approach, whereby input data were collected from the following groups: seedling suppliers and developers, farmers and tree growers, timber traders and collectors, intermediaries, processors, wholesalers, and consumers via key informant interviews, in-depth interviews, and group discussions. The results revealed the vertical integration of Eucalyptus timber businesses, where sapling breeders were the major input suppliers with a significant role in the value chain based on the role of controlling the majority of seedling production, promoting cultivation, and ensuring the raw material supply for the pulp industry through a full-cycle membership program. Total gross marketing margin was highest (90.6%) in the path of the pulp mill industry and lowest in the path of the biomass power plant (73.4%). The profit share of growers varied between 9.9% and 26.6% depending on the path and chain. The overall benefit distribution analysis demonstrated a positive gross profit margin but minor distribution to the growers. Our study determined that decision-makers should create supportive programs, funding opportunities, and infrastructural support for research and development, capacity building, and regulation to ensure suitable benefits for all actors in the Eucalyptus timber value chain in Thailand.

Model based control of dissolved oxygen in paper mill effluent using response surface methodology

In this work, for analysis, one and half liters of (effluent) waste water from paper mill industry was used in batch reactor, to study the variations in DO values under three operating conditions are speed, concentration of effluent in water and time with respect to step change in oxygen feed. The experiment was done 270 trails under specified operating conditions. Experimental data were collected, many trials were done using response surface method (RSM) and respective optimum values of three operating parameters were obtained for DO value ranging from 5 to 6 ppm. In trials, RSM predicted 82.732 % effluent to water concentration, stirrer speed at 150 rpm and at 0.091 min predicted DO is 5.7 ppm, from obtained experimental results shown in figure 3 for 80 % and 90 % concentration. RSM predicted optimal conditions are considered for experimental study and three control strategies such as particle swarm optimization (PSO) based PID control and state feedback controller with Integral action and state observer were used to achieve desired DO value. A comparative study was done among three controllers and it was concluded that state feedback controller with Integral action based control strategy yield better closed loop results in-terms of time-domain and stability analysis.

Improving nutritional and sensory properties of rice bran by germination and solid-state fermentation with fungi

Rice bran, a by-product of the rice milling industry, is rich in protein, fiber, and other nutrients. However, its utilization in food has been limited due to the presence of unpleasant flavors and anti-nutritional components. The present study investigated the impact of germination and solid-state fermentation with various fungi starters on the nutritional and sensory features of rice bran. The results showed germination can significantly decrease phytic acid content and increase the contents of protein and fibers but had a negligible influence on the sensory characteristics of rice bran. Fungal fermentation demonstrated a notable increase in protein content and effective degradation of insoluble fiber and phytic acid in rice bran. Meanwhile, the sensory characteristics of rice bran after fermentation with different fungal cultures varied according to the instrumental analysis (electronic nose/tongue and GC-IMS) and sensory panelists evaluations. Rice bran fermented with Aspergillus niger, Actinomucor elegans and liquor koji exhibited similar GC-IMS spectra and characteristics of odor. However, A. niger imparted bran a musty smell and A. elegans contributed tastes of bitter and astringency. Mucor racemosus fermentation resulted in the highest score of fruity odor. Additionally, rice bran fermented with soy sauce koji stood out with the highest richness score, distinguishing it from other fermented brans. This research can provide insights into improving nutritional and sensory attributes of rice bran.

Rice caryopsis- Its nutritive value and medicinal properties

Cereal crops like rice provides food and sustain health in animal consumers. Its edible caryopsis beside being a source of energy also act as the main nutritional foundation especially for mankind. This paper reviewed the structural complexity of caryopsis, distribution pattern of various nutrients present and their medicinal properties. The caryopsis layers are rich in carbohydrates, proteins, amino acids, lipids, minerals, vitamins, dietary fiber and bioactive compounds. But industrial milling removes most of these nutrient components as polished white rice is mostly consumed. Dismal grain filling process and gradual decreasing of nutrients in grains of many rice cultivars are other factors which further worsen grain quality and deprive poor consumers from getting adequate nutritive value. It results in micronutrient deficiencies, malnutrition and chronic diseases which seriously influence the human health. Therefore, here we have discussed various strategies which will help in mitigating the global health issues. Besides improving human health this review may further help in fulfilling growing demand for quality rice, educating consumers about diet and making them health conscious so that health promoting nutritious brown caryopsis is given more preference rather than the polished endosperm.

Recycling Cost formation and Profitability of foods and beverages firm: Evidence from Flour Milling Industries of Nigeria Plc (1991-2021)

Recycling is one of the most viable options to reuse the end of the product in the closed-loop supply chains (CLSC) management. The major focus of this study is to examine the influence of product recycling cost on the profitability of food and beverage firms. This study relied solely on secondary data sourced which was subjected to a mathematical model using regression analysis. It was observed that dependent and the independent variables has a strong positive relationship with r=0.741. The coefficient of determination r2=0.549 shows that 54.9% of the variation in profit can be explained by production cost at 95% level of significant while in the flour mills Nigeria plc, the dependent and the independent variables has a weak positive relationship with r=0.363. The coefficient of determination r2=0.132 shows that 13.2% of the variation in profit can be explained by the production cost at 95% level of significant. Finally in Dangote Nigeria plc, dependent and the independent variables has a weak positive relationship with r=0.174. The coefficient of determination r2=0.030 Shows that 03.0% of the variation in profit can be explained by the production cost at 95% level of significant.