Local Raw Materials Research Articles

Obtaining of complex hydrogel fertilizers with moisture-retaining NPK based on local raw materials

This article presents the results of research on the production of fertilizers using water-saving hydrogel on the basis of local raw materials. The reaction of ParPAN raw materials with inorganic and organic acids and in the presence of formalin has been studied. According to the results of research, a new type of hydrogel was synthesized. The degree of swelling of the hydrogel has been found to be related to the amount of formalin and other additives. The composition of the hydrogel composition with mineral fertilizer was developed, its basic physico-chemical characteristics and swelling kinetics were studied. The use of hydrogels as a means of keeping moisture and feed components in arid and low-water agricultural regions of the Republic of Uzbekistan is recommended.

Increase of cracking resistance of ceramic masses of low-plastic clay

The object of research is the physical and chemical processes of forming the structure and properties of ceramic masses based on local low-melting clay raw materials of the Kyiv region of Ukraine by adjusting the chemical and mineralogical composition and technological regimes. Building ceramic materials are durable, ecological and natural. They provide increased comfort of buildings due to the creation of a favorable temperature and humidity climate of the premises. When using low-melting raw materials in production, there is a need to develop ways and methods to improve the quality of building ceramics. The efficiency of the manufacture of ceramic products largely depends on the processes that occur during drying. This is of crucial importance and affects the quality of finished products and accounts for 10–12 % of the total cost of finished products. Polymineral clay compositions with the addition of natural mineral raw materials are mainly used for the production of construction materials. For effective use of these materials, it is necessary to study their technological properties. Therefore, the question of researching masses based on low-melting clays with high sensitivity to drying, and the use of zeolite-containing mineral rock as an admixture is relevant. This will allow expanding the nomenclature of building ceramics products. Modern physico-chemical and physico-technological methods of research of raw materials and masses based on them during drying were used to solve the task of obtaining ceramic material from local raw materials with the use of a non-deficient natural additive of zeolite-containing rock as an admixture. The conducted studies indicate that the addition of zeolite-containing rock can be used to improve the drying properties of ceramic masses based on low-melting clays. Adding admixture of zeolite-containing rock also increased the compressive strength of finished products, which ensures defect-free transportation of products to other technological operations.

Development of technology for the production of sweet products based on melon fruit

Object of research: the process of creating a technology for the preparation of sweet products using locally produced melon fruits.
 Investigated goal: Development of technology for the production of sweet products from gourds on a natural basis using local unsold raw materials.
 Main scientific results: possible ways of using unsold melon fruits in the food industry were identified, a solution to the problem of overproduction of melons and gourds in the country was proposed. The original technologies for the production of sweet products made on the basis of the fruits of gourds have been compiled and worked out. the evaluation of the nutritional value of finished products was carried out.
 Area of practical use of research results: small and medium-sized farms for the production of melon fruits.
 Innovative technological product: technology for the production of sweet products, which allows organizing the industrial processing of the unsold volume of gourds.
 Scope of the innovative technological product: agricultural and food industry in the field of melons processing, small and medium enterprises for the production of melons, confectionery production.

ABOUT NON-TRADITIONAL FEED ADDITIVES INFLUENCE ON SAFETY OF THE YAKUT BREED HORSES LIVE WEIGHT

Horse breeding is one of the rapidly developing branches of animal husbandry in Yakutia. Horses of the Yakut breed are only type of farm animals that are kept year-round in harsh conditions of the sharply continental climate of Yakutia. In winter, animals experience a significant lack of nutrients and minerals. This is due to fact that basic diet consists of natural feed winter pasture and hay. Therefore, the goal was to study the effect of complex feed additives from local natural raw materials on the change in live weight and biochemical composition of the blood of animals. This study used standard animal research methods. The use of non-traditional feed additives in feeding of horses contributed to an increase in the supply of nutrients and minerals to the rations. Improving feeding conditions affected the live weight of horses (live weight loss was 5.75 % и 5.45 %). The change caused by inclusion of non-traditional feed additives in the diets of horses had a positive effect on the morphological and biochemical composition of the blood animals. In horses from the experimental groups, an increase was found in the blood in total protein by 0.50 % and 0.30 %, albumin by 0.36 and 0.20 %, globulin by 0.13 and 0.10 %, hemoglobin by 2.91 and 1.33 %, calcium by 3.56 and 1.29%, phosphorus by 5.71 and 1.90 %. Thus, use of experimental non-traditional feed additives in feeding horses in winter contributes to the best preservation of live weight. This is due to the improvement of mineral and vitamin nutrition in a difficult period of deficiency of macro- and microelements, vitamins in the diets of horses. This improves metabolism, which is reflected in the morphological and biochemical composition of blood of horses.

Assessing transportation infrastructure impacts from supply chain restructuring for increased domestic production of critical resources

Contrary to past sentiment for globalization in manufacturing and production, the United States (U.S.) and other nations have shown a strong desire for increased domestic manufacturing and production, especially of critical products. While the benefits are many and include increased national security, increased local jobs, greater earnings and improved economies, the costs to support expanded local or regional production capacity may be nontrivial and extend beyond capital investments. That is, there are social costs for a region and nation that should also be considered. This paper proposes an analytical framework and related mathematical procedures for assessing the impacts of supply chain restructuring and domestic capacity expansion needed for increased domestic manufacturing and production on the operation and maintenance of a nation’s roadways. The impacts are given in terms of added traffic congestion, roadway maintenance costs, fuel consumption, emissions and traffic incidents as a function of estimated added domestic truck loads and truck miles required for expanding domestic production capacity. The framework exploits concepts from the mathematical formulation of multi-commodity, multi-echelon, fixed-charge facility location problems. It was applied in a case study involving increased N95 filtering facepiece respirator (FFR) domestic production within the U.S. This application predicts notable impacts due to an increase in U.S.-based N95 FFR production, with sizable impacts stemming from local raw materials and middle products transportation needed to support increased domestic production. Thus, the case study shows the importance of considering the impacts of increased domestic manufacturing and production on infrastructure and the need for the proposed framework and methodologies. The analytical framework has broad utility and can also be used to compare facility siting proposals, as well as localization and regionalization strategies.

Rationale for choosing optimal yeast races for the production of sparkling cider

The article considers issues related to identifying the most suitable varieties of apples of technical maturity of summer and autumn – winter varieties growing in the Republic of Adygea and the possibility of their use in the technological process of cider production using champagne yeast races. Local apples are in demand both in food and processing industries and among the population. This is due to their unique chemical composition. Technological maturity of experimental varieties of apples have been studied and assessed for a number of technological indicators. The article presents a comparative description of summer and autumn-winter varieties of apples that have reached technological maturity. The study has revealed that autumn-winter varieties of apples are the best for the production of cider. The possibility of using champagne yeast races in the technology of sparkling cider production has been investigated and proved. A significant influence of yeast races on the formation of aroma and taste has been established. According to the literature data, various biochemical processes occur during the fermentation process with a change in the main components of the wort, the formation and synthesis of new compounds that are involved in the formation of aroma and taste. Apple wort fermented with 7–10 Champagne race differed from the control sample and the Novotsimlyanskaya-3 race in a more harmonious taste, fresh and expressive aroma.At present, the main task of the agro-industrial complex of the Russian Federation is to use of local raw materials for the development of new technologies that meet the needs of the population. The results of the experiment have shown the possibility of using autumn-winter varieties of apples growing in the Republic of Armenia in the cider production, and also has made it possible to justify the use of champagne yeast races in this technology to obtain wine materials with high organoleptic characteristics.These studies allow to improve the technological process of cider production.

Prevalence of work related musculoskeletal disorder: a potential threat to clay doll making sculptors

Background: Sculpture is one of traditional art forms of the Indian subcontinent that are made entirely by hand or with some primitive toolsfrom local and natural raw materials without using modern machines. However, these sculptors complain about work-related physicalpain, respiratory difficulties, noise-induced hearing difficulties, fatigue, and stress. They are compelled to work long hours because mostsmall enterprises fail to recruit the required workforce. Objective: The study's goal is to examine musculoskeletal pain caused by awkwardposture and long periods of labor, as well as possible solutions. Methods: This study took place in Ghurni, Krishnanagar; district Nadia,in West Bengal. Fifty sculptors and thirty non-sculptors of similar socio-economic backgrounds participated in this study. The ModifiedNordic Musculoskeletal Disorder and the Oswestry Low Back Pain Disability Questionnaire were used to collect the data. Student t-testwas employed for statistical processing. Results: Analysis revealed that sculptors suffered mostly from musculoskeletal disorders. Thesculptors raised maximum complaints about the pain from the shoulder and lower back. Conclusion: Based on the investigation andcomplaints, work posture and workstation modification is required. The design of a newly developed ergonomic workstation and itsusability is proposed for review.

EFFECTIVENESS OF PROBIOTIC AND DIGESTIVE ENZYMES IN FERMENTED DIET ON GROWTH, FAT AND CHOLESTEROL CONTENTS OF BROILER

ABSTRACTThe present study aims to determine the effect of fermented diet containing probiotics and digestive enzymes with different feed levels on growth, fat and cholesterol contents of broiler chickens. Evaluating the effectiveness of probiotics (P) and digestive enzymes (DE) in fermented diet on broiler was observed by 4 treatments: P0=control (fermented diet without P and ED) EP), P1(fermented diet contained 0.5% P only)), P2 (fermented diet contained 0.5% DE only), P3 (fermented diet contained 0.5% P and 1% DE) and P4 (fermented diet contained 1% P and 0.5% DE). A hundred DOCs of broiler chickens strain CP 707 were used (unsex) and it designed by a completely randomized design with 5 treatments, 4 replications and each replication consisted of 5 DOCs. The data obtained were analyzed by means of variance and Duncan's multiple range test. The results of present study showed that broiler fed on fermented diet containing P and/or ED with different levels had a significant effect (P0.05) on final body weight, weight gain, carcass weight, fat content on thigh muscle. Broiler fed on fermented diet contained 0.5% DE only (P2) resulted in better growth and weight gain than other treatments. However, fermented diet contained probiotics and digestive enzymes had no effect on fat and cholesterol contents in breast muscle. It was concluded that the addition of digestive enzymes in fermented diet formulated by local raw materials was very effective than probiotics in increasing body weight gain, carcass weight and prevented the increase in fat and cholesterol contents both in breast and thight muscles of broiler chicken.

Nutritional evaluation, oxidative indexes, and functional properties of Irish potatoes, eggs, and red kidney beans based complementary food

Background: Protein-energy malnutrition (PEM) remains a serious public health concern in Cameroon. This disorder is frequent in childhood and is primarily caused by a deficiency in energy, protein, and micronutrients. Aims: This study aimed to develop novel complementary foods from suitable sources of proteins and minerals such as Irish potatoes (Solanum tuberosum L.), red kidney beans (Phaseolus vulgaris L.), and egg flours. Material and Methods: Different flours were prepared from local raw materials. Four blends (1 to 4) were formulated at different proportions and the nutritional composition, oxidative indexes, urease activity, and techno-functional properties of blends were assessed and compared to the Irish potato flour (control). Results: The protein (16.1 to 24.23 %) content was significantly (p < 0.05) higher in blends than in the control (10.88 %). Blend 3 (60 % Irish potato, 25% Egg yolk, 15 % Egg white) showed the highest total calorie value (396.69 Kcal/100 g). Magnesium (2084 to 2470 mg/100 g), and iron (10.9 to 14.7 mg/100 g) contents were higher in blends than in the control (2053 and 9.9 mg/100 g respectively). Vitamins C and β-carotene contents in blends were 9.99 – 13.03 and 0.94 – 2.34 mg/ 100 g respectively. The peroxide value ranged from 5.3 to 8.98 meq O2 /Kg oil. Blend 3 showed the lowest urease activity (0.73 expressed as ΔpH). Concerning the techno-functional properties, the lowest bulk density (0.79 g/cm3) was obtained in blend 3. Blends 3 and 4 showed the lowest water absorption capacity (2.35 and 2.25 mL/g) and swelling capacity with 5.86 and 5.16 mg/g respectively. Conclusions: From our investigation, blend 3 could be used as a base for complementary foods as this blend presents the most nutritive and present the best techno-functional characteristics. Keywords: Blends, nutritional composition, peroxide value, urease activity, techno-functional properties.

Low‐cost technologies in a rich ecological context: Hotel California open‐air site at Sierra de Atapuerca, Burgos, Spain

ABSTRACTHotel California is part of a network of open‐air Neanderthal sites located in the Sierra de Atapuerca (Burgos, Spain). In this study, we examine the technology of the lithic assemblages recovered from this site's archaeological levels 3 to 7, which are characterised by the use of local raw materials, non‐hierarchical centripetal exploitation systems, systematic production of flakes and few retouched items. This type of expedient technology is repeated throughout the entire sequence, which spans Marine Isotope Stages (MIS) 3 to 4. Through a comparison with the technocomplexes and occupation histories of surrounding sites – including a re‐evaluation of the published chronology for the nearby site of Fuente Mudarra, which is now dated exclusively to MIS 5 – we examine whether the detected pattern is applicable to the rest of the Atapuerca Mousterian record and if this expedient behaviour has equivalents in other sites in the region. Our findings show that the lithic procurement, exploitation and configuration strategies employed at the Sierra de Atapuerca open‐air sites were constant over broad time periods spanning MIS 5 to 3, in contrast to the technological sequences observed at other nearby sites on the Northern Iberian Plateau. The recurrent settlement of these open‐air Neanderthal sites over tens of thousands of years and the consistent use of expedient technologies during different occupation periods is likely attributable to the rich ecological context of the Sierra de Atapuerca environs.

THE USE OF INDIGOFERA LEAF FLOUR (Indigofera sp.) AS A SUBSTITUTE OF SOYBEAN FLOUR IN THE GROWING FEED OF RED TILAPIA (Oreochromis sp.)

Feed is one of the most important aspects that cannot be left out in the fish farming process. One of the problems often faced by cultivators is the high price of feed due to the use of imported raw materials, such as soybean meal flour. To reduce the use of soybean meal flour, a new innovation was carried out in the form of substitution of local raw materials, namely Indigofera sp. This study aims to determine the effect of TDI (Indigofera sp.) as a substitute for soybean meal flour on growth performance on rearing red tilapia (Oreochromis sp.). This study used a completely randomized design with 4 treatments and 3 replications. P1 (without TDI usage), P2 (10% TDI usage), P3 (20% TDI usage), P4 (30% TDI usage). The data obtained were analyzed using analysis of variance (ANOVA) then further tested with Duncan's test. Based on statistical analysis, the test feed had a significant effect (p<0.1) on FCR was not significantly different (p>0.1) on the growth of absolute weight, absolute length, SGR, and SR of fish. The result of this study is that the use of TDI (Indigofera sp.) can be used up to a dose of 30% as a substitute for soybean meal flour in red tilapia feed, because it produces the same absolute weight growth, absolute length growth, SGR, and SR as the control feed.

"Epancha Was Made in that Wool": Felt Clothes in the Upper Volga Region and Neighboring Territories in the Middle Ages and Early Modern Time.

The article considers felt clothing, widely used by the Russian population during the Middle Ages and early Modern times. The data of written sources of the XV-XVII centuries are analyzed – scribal descriptions and assembly material, including documents of the patrimony of monasteries and secular landowners. The data of the archeology of an earlier period are involved. In written sources there is information about woolworkers, felters, half–timbers and epaulettes - artisans who specialized in the production of felt products. Among them, the clothing manufacturers were epanechniki. Evidence is given that in the XVI-XVII centuries. The epancha was felt clothing. It was a cape with a rounded neckline, without sleeves. There are archaeological finds of the Old Russian period corresponding to this form of clothing. This form of clothing existed from the early Middle Ages to Modern times. Written sources of the late XV – XVII centuries reflect the spread of the craft of making felt and epanches. There is a development of specialization in the manufacture of felt products in the western part of the Upper Volga and Upper Podvinye during the late Middle Ages and early Modern times - in the cities of Staritsa, Toropets and the village of Knyazh Vladimirovo Gorodishche - the former patrimony center of the Princes Mikulinsky. For the production of felt, local raw materials were used – products of universally developed sheep breeding. At the end of the XV – XVII century in the structure of a large patrimonial economy, the volume of income from wool allowed the production of felt products from raw materials collected in different parts of the patrimony.

Capacity Building of a Self-Reliant Model Community for Cholangiocarcinoma Prevention by Producing Fruit and Vegetable Juice Products in a High-Risk Area of Thailand.

This participatory action research aims to develop healthy fruit and vegetable juice products (FVPs) to enhance people's income and quality of life (QOL) in a community with the highest prevalence of cholangiocarcinoma (CCA) in Thailand. We randomly sampled study areas from 25 homes in a Thai community to solve poverty and improve QOL. Descriptive and inferential statistics were employed for data analysis. Moreover, qualitative data were analyzed by content analysis. The community management system relies on local resources under religious inspiration. Academics also keep developing FVPs from local raw materials planted by organic farming under "Nong Lak Rak Sukapab." The product's nutritional value was measured by In-House and Nutrition Labeling Methods from National Food Institute Laboratory (IEC/ISO17025). According to the Bureau of Nutrition, a 230 ml bottle of each wheatgrass and corn juice contains nutrients beneficial to health and necessary for the body. In addition, the community has participated in production planning, marketing, distribution, and household accounting. As a result, average monthly household income and QOL increased with statistical significance after the project implementation. Conclusions: These findings demonstrated that improving communities' capacity to be health leaders by producing FVPs to prevent CCA in high-risk areas is critical to early disease prevention and community health care. These issues can also be applied to public policy implications for other regions and diseases in order to emphasize community health care and long-term community development.

Comparative Pharmacotherapeutic effectiveness of Therapeutic Ointments in infectious Keratoconjunctivitis in cattle

The analysis of the presented data shows that keratoconjunctivitis is quite often registered in cattle. Therefore, new medicinal substances have been developed for its treatment, namely, a polycomponent ointment and a phyto-ointment from local plant raw materials. As a result of the conducted research, reliable data were obtained indicating the beneficial effect of the developed ointments on individual biochemical blood parameters in sick animals. Studies have established that the complex application of the developed ointments contributes to the bio-correction and bio-normalization of metabolic processes in the body of sick animals, which is expressed by a significant increase in the quantitative values of hematological parameters, total protein and its fractional composition, β-lysine, lysozyme, lactoferrin, and bactericidal activity of blood serum. In the course of treatment, the greatest therapeutic effectiveness was established in the 3rd experimental group of animals, which used a combined treatment regimen with the alternating use of multicomponent ointment the Kazakh Scientific Research Veterinary Institute LLP (KazSRVI) and phyto-ointment KerKon. After applying the combined scheme, 33.3% of animals recovered by the 10th day from the start of treatment, and the full recovery of the majority of sick animals occurred within 11-16 days (66.7%). The obtained results of the research and production experiment showed that the most acceptable method was the use of a combined treatment regimen for sick animals, where the absolute effectiveness was 100%, compared to 80% in the control group.

Organic Juice Processing Quality from the Processors' Perspective: A Qualitative Study.

Organic food quality is based on processing. While the EU organic production regulation focuses on agricultural production, private standards provide more detailed information about further processing. For the development of organic processing, practitioner perspectives can provide valuable input. To get insight into practitioner perspectives, we conducted semi-structured expert interviews with nine employees of seven partly organic juice processing companies from Germany and Austria. Interview topics were (i) quality of organic juice processing in general, (ii) assessment of specific processing techniques, (iii) product quality of organic juice and (iv) flow of information between producer and consumer. We conducted a thematic analysis. We found that the experts' understanding of process quality mostly includes more aspects than the EU organic production regulation. It covers the whole food chain plus aspects of social and environmental sustainability. The experts prefer directly bottled juice of local raw materials but chiefly accept juice made from concentrate of exotic raw materials because of environmental concerns. Organic juice is preferred when it is cloudy and natural fluctuations are interpreted as an indicator of natural quality. The experts report that consumer information is challenging because of low food literacy. Raising this might help reduce the number of processed juices on the market.

Bimbingan Teknis Pupuk Organik Cair untuk Meningkatkan Produksi Karet Rakyat di Payaraman Barat Kabupaten Ogan Ilir

<p><span lang="EN-US"><strong>Technical Assistance Using Liquid Organic Fertilizer for Improving Small-Scale Rubber Production in Payaraman Barat, Kabupaten Ogan Ilir.</strong> Liquid organic fertilizer (POC) is getting more attention from users (researchers, farmers, planters and others) because of the various advantages it has. Its manufacture is not too difficult and can use local raw materials</span><span> (</span><span lang="EN-US"> agricultural waste, market waste or potential household organic waste</span><span>). </span><span lang="EN-US">One of the advantages is that it can reduce the cost of fertilization. POC can be used to improve soil fertility and it is hoped that in the end it will be able to increase the productivity of rubber plants. This community service activity aims to provide technical guidance on how to make POC in a simple way and then apply it to rubber plants, accompanied by sanitation of the garden environment by cleaning weeds. There are four waste materials or plant materials used to make POC, namely pineapple peel waste, papaya fruit, banana peel and water hyacinth. The material is fermented in a simple reactor made of a gallon or bucket of used paint that is perforated and fitted with a faucet. The fermentation process is assisted by black soldier flies which will come into the reactor by themselves. After two weeks </span><span>it </span><span lang="EN-US">will begin to produce fermented liquid. After four weeks the liquid is dried in the sun until it turns dark brown and is ready to use. In this activity, doses of 10, 20, 30 or 40 mL of POC </span><span>were </span><span lang="EN-US">dissolved into 1 liter. The results of the socialization showed that 15 members of the farmer group did not know about POC and were very interested in using it. Preliminary data (n=30) showed a fairly large variation in sap production (59.7±48.6 grams/tree). Some rubber stems do not release sap, and the highest can reach 142.9 grams/tree with an average of 41 to 83 grams/tree. The collection of results is carried out every week according to latex sales. After 4 weeks of application of POC pineapple peel production can reach 165 to 470 grams/tree.</span></p>

Study of methods of chemisorption purification of hydrogen sulfide in natural gases with natural sorbent

We know from the literature that the cost-effectiveness of using zeolites to purify natural gas is much higher than other natural resources. In the laboratory, CaCl2∙ZnCl2∙MnCl2/HQZ were prepared by treating bentonite obtained from local raw materials with calcium, zinc, and magnesium salts. Local raw materials are activated by mechanical-thermal and chemical processing and are delivered in the form of dark-colored granules (tablets) up to 5 mm in diameter. The sorption potential of high-silica zeolite obtained from local raw materials by metal salts and heat treatment was studied, and a technological scheme was developed. A catalyst containing CaCl2∙ZnCl2∙MnCl2/HQZ was developed for drying the obtained high-silica zeolite oil satellite and natural gas from water vapor and purification from sulfur compounds, and its texture and sorption properties were studied. The total amount of SiO2, Ca2+, Zn2+, and Mg2+ ion phases was studied in the radiological analysis of the surface of the catalyst CaCl2∙ZnCl2∙MnCl2/HQZ. According to IR spectroscopy data, surface adsorption of hydrogen sulfide at 25°C occurs in the presence of hydroxyl groups. UZBEKGAZ JSC -Mubarek Gas Processing Plant conducted experimental tests to study the sorption properties of this catalyst, as well as a comparative study of the possibility of sorption of sulfides with the participation of catalysts CaCl2∙ZnCl2∙MnCl2/HQZ and CaA (5A). The tests showed that another experimental test of the selected CaA (5A) compound catalyst was also performed. The absorption of this adsorbent hydrogen sulfide showed that the catalyst CaCl2∙ZnCl2∙MnCl2/HQZ has a total capacity of 8.3% by mass and 14.3% by mass.

Compositions of clay suspensions for fixing moving sands and soils

This article discusses the development of compositions of new, effective, water-soluble fixatives-reagents based on local raw materials and industrial waste. A technology has been developed for obtaining and using new types of complex additives-fixers based on hydrolyzed polyacrylonitrile polyelectrolyte, which can be recommended for implementation when fixing saline soils and sands of the Aral region. Chemical reagents and materials have been selected to create a structured crust and a three-dimensional structure in a system of moving sands and soils. The processes of creating compositions of clay suspensions for fixing moving soils and sands were studied, for which alkaline bentonites of the Krantau deposit and alkaline earth bentonite of the Beshtyubenskoye deposit were selected. As a result of the studies carried out, the features of the chemical fixation of moving sands using local raw materials were established to prevent salt and dust release into the environment and improve its environmental conditions.

Strategic Design to Increase Indonesian Furniture Industry Export Competitiveness

Furniture, a high-value-added product, is considered one of the strategic commodities for the economy in Indonesia because it is globally competitive. The furniture industry in Indonesia has grown by relying on local raw materials and human resources to keep its existence in the market. Despite Indonesia being known as a significant producer of raw materials for furniture due to its forestry area, the furniture export value is far behind compared to export value abroad. The offered price and appearance from abroad are more attractive than Indonesia's products. Therefore, there is a need to evaluate what factors influence the success of an industry. In general, the industry's success is mainly influenced by the interaction quality among all actors in the industry, either internal or external parties. Thus, the furniture industry needs to manage not only within the industry but also its supply chain effectively and efficiently. This study would like to evaluate the criteria and sub-criteria influencing the furniture industry's export competitiveness based on its supply chain, including circular economy implementation, and propose strategic recommendations. This study applies three methods: cut-off point, Analytical Network Process (ANP), and semi-standardized interview. The finding of this study indicates that the sub-criteria with the most decisive influence on Indonesia's furniture export competitiveness are operation cost, collaboration, and quality, respectively. Furthermore, a collaborative strategy between stakeholders in the furniture industry is proposed to increase the efficiency of operational processes, save operating costs, and increase product quality.

Biologically Active Feeds Based on Local Raw Materials

An efficient technology for protein extraction from silk production waste has been developed. The dynamics of the degree of precipitation of alkaline hydrolysates by acetic acid has been studied. The amino acid composition of the isolated protein was determined, which contains 9 essential acids. IRspectroscopy and elemental analysis showed the purity of the isolated protein. Approbation of protein in the composition of feed in fish farming showed high fish productivity and efficiency in terms of feed ratio. The use of Bombyx mori protein for poultry in the amount of 0.5% 1% increases the gain in poultry meat and egg production by 48.25%.