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. 2022 Feb 23;70(23):6787–6804. doi: 10.1021/acs.jafc.1c07104

Table 3. Effects of Fermentation on the Bioactive Compounds from Agricultural Food Waste/Byproducts.

agricultural food waste/byproduct fermentation method microorganisms effects of fermentation reference
mango seeds solid-state fermentation Aspergillus niger mobilization of polyphenolic compounds (110)
improvement of nutraceutical properties
practical method for releasing the bound phenolics
apricot pomace solid-state fermentation Aspergillus niger and Rhizopus oligosporus increase of total phenolic and flavonoid contents (over 70% for total phenolics and 38% for total flavonoids with R. oligosporus, and more than 30% for total phenolics and 12% for total flavonoids with A. niger) (111)
improvement of free radical scavenging capacities
plum fruit (Prunus domestica L.) byproducts solid-state fermentation Aspergillus niger and Rhizopus oligosporus significant increase of total phenolic and antioxidant levels (for total phenolic content: higher than 30% with R. oligosporus and higher than 21% with A. niger) (112)
achievement of higher lipid recovery from plum kernels
enrichment of polar lipids with n-3 polyunsaturated fatty acids
spent coffee grounds solid-state fermentation Bacillus clausii increase of total phenolic and flavonoid contents and antioxidant capacity (36%, 13%, and 15%, respectively) (113)
improvement of antimicrobial activity against gram (+) and gram (−) bacteria
spent coffee grounds fermentation Bacillus clausii increase of total proteins, soluble proteins, and protein hydrolysates amounts (2.7-, 2.2-, and 1.2-fold, respectively) (114)
tomato seed meal extract fermentation Lactobacillus plantarum reduction of crude and soluble proteins contents (18.44% and 68.99%, respectively) due to L. plantarum growth on the substrate after 24 h (115)
increase of radical scavenging activity after 24 h (87%) due to different bioactive peptides production
significant reduction of total amino acids (specifically glutamic acid and aspartic acid) concentration
improvement of new amides and aromatic compounds formation
peanut press cake solid-state fermentation Aspergillus awamori improvement of phenolic and antioxidant properties (116)
improvement of functional properties (apart from bulk density)
improvement of morphological characteristics and mineral content
Jussara pulp Lactobacillus fermentation Lactobacillus and Bifidobacterium strains increase in antioxidant activity (117)
more extensive changing of jussara anthocyanins by Lactobacillus deubruekii
the main bioconversion products from anthocyanins → protocatechuic acid
rice bran solid-state fermentation Rizhopus oryzae increase of phenolic compound content (more than 2-fold) (118)
the highest increase of phenolic acid → gallic and ferulic acid
phenolic extract from fermented rice bran → inhibition of the peroxidase enzyme