Enhanced nutritional profile of dehulled peas through fungal fermentation: Impacts on protein, starch, saponins, and total phenolic content

IF 1.9 4区 农林科学 Q3 CHEMISTRY, APPLIED
Camille M. Massmann, Mark Berhow, William R. Gibbons, Bishnu Karki
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引用次数: 0

Abstract

Dehulled peas (DHP) are increasingly popular in food applications, but their integration in food products is limited due to high starch and fiber causing gelling and aggregation during cooking. Additionally, DHP contains saponins (secondary metabolite), contributing to bitter flavors, yet they also hold health benefits. We hypothesize that fungal fermentation could enhance DHP nutritional profile and integration into food products. This study evaluated the effects of six fungal organisms (Aspergillus niger [An], Aspergillus oryzae [Ao], Aureobasidium pullulans [Ap], Neurospora crassa [Nc], Rhizopus microspores var. oligosporus [Ro], Trichoderma reesei [Tr]) on DHP over 120 h of submerged fermentation, evaluating total phenolics, starch, saponins, crude proteins, and overall mass balance. Results from the study demonstrated notable changes post-fermentation, including increased overall protein content and solubility, decreased starch content, reduced overall mass recovery, and elevated levels of total phenolics and saponins. Filamentous fungi exhibited a significant reduction in starch content, contributing to a substantial reduction in mass recovery (31%–60%) compared to the control. Unexpectedly, saponin concentrations increased (1.5 to 3 folds) during fermentation, possibly attributed to the breakdown of the substrate matrix and release of bound saponins. Total phenolic levels varied among microorganisms, with An and Nc demonstrating the highest increases (6 to 10 folds) as compared to the control. Overall, these findings point to fungal fermentation as a tool for adding value to yellow peas and other crops facing similar processing challenges. Further research is warranted to understand the health impacts and value of these enhancements.

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来源期刊
CiteScore
4.10
自引率
5.00%
发文量
95
审稿时长
2.4 months
期刊介绍: The Journal of the American Oil Chemists’ Society (JAOCS) is an international peer-reviewed journal that publishes significant original scientific research and technological advances on fats, oils, oilseed proteins, and related materials through original research articles, invited reviews, short communications, and letters to the editor. We seek to publish reports that will significantly advance scientific understanding through hypothesis driven research, innovations, and important new information pertaining to analysis, properties, processing, products, and applications of these food and industrial resources. Breakthroughs in food science and technology, biotechnology (including genomics, biomechanisms, biocatalysis and bioprocessing), and industrial products and applications are particularly appropriate. JAOCS also considers reports on the lipid composition of new, unique, and traditional sources of lipids that definitively address a research hypothesis and advances scientific understanding. However, the genus and species of the source must be verified by appropriate means of classification. In addition, the GPS location of the harvested materials and seed or vegetative samples should be deposited in an accredited germplasm repository. Compositional data suitable for Original Research Articles must embody replicated estimate of tissue constituents, such as oil, protein, carbohydrate, fatty acid, phospholipid, tocopherol, sterol, and carotenoid compositions. Other components unique to the specific plant or animal source may be reported. Furthermore, lipid composition papers should incorporate elements of year­to­year, environmental, and/ or cultivar variations through use of appropriate statistical analyses.
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