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Nile SH, Venkidasamy B, Samynathan R, Nile A, Shao K, Chen T, Sun M, Khan MU, Dutta N, Thiruvengadam M, Shariati MA, Rebezov M, Kai G. Soybean Processing Wastes: Novel Insights on Their Production, Extraction of Isoflavones, and Their Therapeutic Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:6849-6863. [PMID: 34645264 DOI: 10.1021/acs.jafc.1c04927] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Soybean processing waste (SPW) has potential as a sustainable source of phytochemicals and functional foods. A variety of phytochemicals, nutrients, and minerals have been characterized from SPW using various analytical methods. SPW utilization strategies may provide a new way to increase production of bioactive compounds, nutritional supplements, and cosmetic ingredients. SPW has the potential for value-added processing, to improve commercial use, and to lower environmental pollution through proper use. Okara, a byproduct generated during soybean processing of tofu and soy milk, is rich in dietary fiber, isoflavones, and saponins. Isoflavones, an important class of biologically active compounds owing to their multifunctional and therapeutic effects, are extracted from SPW. Further, studies have shown that okara has potential prebiotic and therapeutic value in lowering the risk of noncommunicable diseases. Therefore, in this review, we focus on several extraction methods and pharmacotherapeutic effects of different SPWs. Their effective uses in functional foods, nutraceuticals, and health applications, as biocatalysts, and as value-added resources have been discussed.
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Affiliation(s)
- Shivraj Hariram Nile
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, The Third Affiliated Hospital, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China
| | - Baskar Venkidasamy
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore, Tamil Nadu 641062, India
| | - Ramkumar Samynathan
- R&D Division, Alchem Diagnostics, No. 1/1, Gokhale Street, Ram Nagar, Coimbatore, 641009, Tamil Nadu India
| | - Arti Nile
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Keding Shao
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, The Third Affiliated Hospital, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China
| | - Tingting Chen
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, The Third Affiliated Hospital, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China
| | - Meihong Sun
- Institute of Plant Biotechnology, School of Life Sciences, Shanghai Normal University, Shanghai 200234, PR China
| | - Muhammad Usman Khan
- Department of Energy Systems Engineering, Faculty of Agricultural Engineering and Technology, University of Agriculture, Faisalabad 38000, Pakistan
| | - Nalok Dutta
- Bioproducts Science & Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Tri-Cities Campus, Richland, Washington 99354, United States
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Mohammad Ali Shariati
- K.G. Razumovsky Moscow State University of Technologies and Management (the First Cossack University), 73 Zemlyanoy Val, Moscow 109004, Russian Federation
| | - Maksim Rebezov
- V M Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 26 Talalikhina St., Moscow 109316, Russian Federation
| | - Guoyin Kai
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, The Third Affiliated Hospital, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China
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Lee Y, Tanaka Y, Iwasaki W, Yokoyama F, Joe GH, Tsuji M, Nose T, Tada K, Hanai T, Hori S, Shimizu H, Minamida K, Miwa K, Ishizuka S. Dietary supplementation with okara and Bacillus coagulans lilac-01 improves hepatic lipid accumulation induced by cholic acids in rats. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.104991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Feng JY, Wang R, Thakur K, Ni ZJ, Zhu YY, Hu F, Zhang JG, Wei ZJ. Evolution of okara from waste to value added food ingredient: An account of its bio-valorization for improved nutritional and functional effects. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Maeta A, Katsukawa M, Inomoto Y, Hayase Y, Takahashi K. Intake of okara soup for 2 weeks for breakfast improved defecation habits in young Japanese women with self-reported constipation: A randomized, double-blind, placebo-controlled, intervention study. J Food Sci 2020; 85:3570-3576. [PMID: 32885419 DOI: 10.1111/1750-3841.15392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 06/08/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
Okara is a byproduct of soymilk manufacturing and a rich source of protein and dietary fiber. We investigated whether okara intake improves the habit of defecation in young Japanese women (n = 52) with self-reported constipation. Subjects were categorized into placebo and test groups, who ingested soymilk (0.1 g fiber/meal) and okara (4.1 g fiber/meal) soups, respectively, every day for breakfast, for 2 weeks. Subjects' body composition, bowel movement frequency per week, and constipation assessment scale (CAS) and brief-type self-administered diet history questionnaire scores were assessed at baseline and after the intervention (Analysis 1). Further, subjects' bowel movement frequency per week and CAS scores were assessed during the 2-week follow-up (Analysis 2). There were no significant differences in age, anthropometric characteristics, nutrients intake, frequency of bowel movements per week, and total CAS scores between the placebo and test groups at baseline. After intervention, the total CAS score was significantly lower in the test group than in the placebo group. Moreover, the difference in the total CAS scores between baseline and after intervention was lower in the test group than in the placebo group, although not significant. The weekly frequency of bowel movement significantly increased for both placebo and test groups. The test group reported reduced abdominal bloating 2 weeks after the intervention, but the placebo group did not. The findings suggest that okara is effective in increasing the frequency of bowel movements and improving defecation habit in young women with self-reported constipation. PRACTICAL APPLICATION: Okara is an effective food to increase the frequency of bowel movements and to improve defecation habits in young women with self-reported constipation.
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Affiliation(s)
- Akihiro Maeta
- Department of Food Science and Nutrition, School of Food Science and Nutrition, Mukogawa Women's University, 6-46, Ikebiraki-cho, Nishinomiya, Hyogo, 663-8558, Japan
| | - Masahiro Katsukawa
- Product Development Division, Kikkoman Food Products Company, 250, Noda, Noda, Chiba, 278-0037, Japan
| | - Yasushi Inomoto
- Product Development Division, Kikkoman Food Products Company, 250, Noda, Noda, Chiba, 278-0037, Japan
| | - Yaeko Hayase
- Product Development Division, Kikkoman Food Products Company, 250, Noda, Noda, Chiba, 278-0037, Japan
| | - Kyoko Takahashi
- Department of Food Science and Nutrition, School of Food Science and Nutrition, Mukogawa Women's University, 6-46, Ikebiraki-cho, Nishinomiya, Hyogo, 663-8558, Japan
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Colletti A, Attrovio A, Boffa L, Mantegna S, Cravotto G. Valorisation of By-Products from Soybean ( Glycine max (L.) Merr.) Processing. Molecules 2020; 25:E2129. [PMID: 32370073 PMCID: PMC7248727 DOI: 10.3390/molecules25092129] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/31/2022] Open
Abstract
In recent years, increased awareness of the health benefits associated with consuming soy-based foods, knowledge of milk-related allergies and a move towards more sustainable food production have led to an increase in the number of available soy-based products. The biggest producers in the world, the USA, South America and China, are from the Pacific region. This enormous production is accompanied by the accumulation of related by-products, in particular, a substance that is known as okara. Okara is a paste that is rich in fibre (50%), protein (25%), fat (10%), vitamins and trace elements. Its proper use would lead to economic advantages and a reduction in the potential for polluting the environment. Its high fibre content and low production costs mean that it could also be used as a dietary supplement to prevent diabetes, obesity and hyperlipidaemia. Chemical or enzymatic treatment, fermentation, extrusion, high pressure and micronisation can all increase the soluble fibre content, and thus improve nutritional quality and processing properties. However, the product also degrades rapidly due to its high moisture content (70-80%), which makes it difficult to handle and expensive to dry by conventional means. The aim of this paper is therefore to thoroughly study the existing literature on this subject in order to develop a general protocol for okara exploitation and valorisation. A cost/benefit analysis could drive the design of eco-friendly, sustainable protocols for the preparation of high-value nutritional products.
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Affiliation(s)
- Alessandro Colletti
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (A.C.); (A.A.); (L.B.); (S.M.)
| | - Andrea Attrovio
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (A.C.); (A.A.); (L.B.); (S.M.)
| | - Luisa Boffa
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (A.C.); (A.A.); (L.B.); (S.M.)
| | - Stefano Mantegna
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (A.C.); (A.A.); (L.B.); (S.M.)
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (A.C.); (A.A.); (L.B.); (S.M.)
- Centre of Bioanalytical Research and Molecular Design, Sechenov First Moscow State Medical University, 8 Trubetskaya ul, 119991 Moscow, Russia
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Santos DCD, Oliveira Filho JGD, Silva JDS, Sousa MFD, Vilela MDS, Silva MAPD, Lemes AC, Egea MB. Okara flour: its physicochemical, microscopical and functional properties. ACTA ACUST UNITED AC 2019. [DOI: 10.1108/nfs-11-2018-0317] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
Okara, which is the residue of hydrosoluble extract from soybean obtained after soymilk and tofu production, has high nutritional value and can be used for ingredient in specific food products. This study aims to evaluate the production and properties (physicochemical, microscopical and functional ones) of okara flour (OF) obtained from okara as a by-product of soymilk and tofu production.
Design/methodology/approach
Wet okara resulted from the soymilk process underwent convective drying up to reach mass stability (60°C for 12 h). OF properties were analyzed by official methods by AOAC, i.e. mineral composition was evaluated by atomic absorption equipment; color; water absorption index (WAI); milk absorption index (MAI); oil absorption capacity (OAC); and foam capacity (FC) required mixtures with water, milk and oil, separation and gravimetry, respectively; and microstructure was determined by a scanning electron microscope.
Findings
Results showed the potential OF has as a source of protein (24.74 g/100 g) and dietary fiber (58.27 g/100 g). Regarding its color after the drying process, OF was markedly yellow (b* parameter 20.16). Its WAI was 3.62 g/g, MAI was 4.33 g/g, OAC was 3.68 g/g and FC was 1.32 per cent. The microscopic analysis of OF showed that both loose and agglomerated particles had irregular structures and indefinite forms.
Originality/value
Production of flour from wet okara can be an alternative use of this by-product. This study showed important characteristics of OF and its possible application to the food industry. Thus, OF was shown as a potential ingredient with high nutritional value.
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Ramdath DD, Padhi EMT, Sarfaraz S, Renwick S, Duncan AM. Beyond the Cholesterol-Lowering Effect of Soy Protein: A Review of the Effects of Dietary Soy and Its Constituents on Risk Factors for Cardiovascular Disease. Nutrients 2017; 9:E324. [PMID: 28338639 PMCID: PMC5409663 DOI: 10.3390/nu9040324] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/16/2017] [Accepted: 03/21/2017] [Indexed: 12/13/2022] Open
Abstract
The hypocholesterolemic effect of soy is well-documented and this has led to the regulatory approval of a health claim relating soy protein to a reduced risk of cardiovascular disease (CVD). However, soybeans contain additional components, such as isoflavones, lecithins, saponins and fiber that may improve cardiovascular health through independent mechanisms. This review summarizes the evidence on the cardiovascular benefits of non-protein soy components in relation to known CVD risk factors such as hypertension, hyperglycemia, inflammation, and obesity beyond cholesterol lowering. Overall, the available evidence suggests non-protein soy constituents improve markers of cardiovascular health; however, additional carefully designed studies are required to independently elucidate these effects. Further, work is also needed to clarify the role of isoflavone-metabolizing phenotype and gut microbiota composition on biological effect.
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Affiliation(s)
- D Dan Ramdath
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada.
| | - Emily M T Padhi
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada.
| | - Sidra Sarfaraz
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada.
| | - Simone Renwick
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada.
| | - Alison M Duncan
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2E1, Canada.
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