Cited by 876Phytase and its ApplicationsFood composition and propertiesFood and Agricultural Sciences

Fermentation and Germination Improve Nutritional Value of Cereals and Legumes through Activation of Endogenous Enzymes

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Nkhata, Smith G., Ayua, Emmanuel, Kamau, Elijah H., Shingiro, Jean‐Bosco·2018·Food Science & Nutrition

Abstract

Cereals and legumes are outstanding sources of macronutrients, micronutrients, phytochemicals, as well as antinutritional factors. These components present a complex system enabling interactions with different components within food matrices. The interactions result in insoluble complexes with reduced bioaccessibility of nutrients through binding and entrapment thereby limiting their release from food matrices. The interactions of nutrients with antinutritional factors are the main factor hindering nutrients release. Trypsin inhibitors and phytates inherent in cereals and legumes reduce protein digestibility and mineral release, respectively. Interaction of phytates and phenolic compounds with minerals is significant in cereals and legumes. Fermentation and germination are commonly used to disrupt these interactions and make nutrients and phytochemicals free and accessible to digestive enzymes. This paper presents a review on traditional fermentation and germination processes as a means to address myriad interactions through activation of endogenous enzymes such as α-amylase, pullulanase, phytase, and other glucosidases. These enzymes degrade antinutritional factors and break down complex macronutrients to their simple and more digestible forms.

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Crossref · 10.1002/fsn3.846

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  • Fermentation promotes the microbial degradation of antinutritional compounds by producing phytases and proteolytic enzymes, while also increasing the release of bioactive compounds and antioxidant activity.

    “Additionally, fermentation further promotes the microbial degradation of antinutritional compounds by producing phytases and proteolytic enzymes, while also increasing the release of bioactive compounds and antioxidant activity [34].”

    From Valorization of Microalgae as Multifunctional Protein Sources in Plant-Based Systems: Structural, Functional, and Processing Challenges (2026) · cites this paper as [34]

    The Protein section (page unavailable) describes proteolytic enzymes in fermenting L. plantarum and reductions in antinutritional compounds. The Minerals section says phytase degrades phytate, but the paper emphasizes activation of phytase already present in grains rather than microbial production of phytase. The Phytochemicals section reports release of bound compounds and potential increases in antioxidant properties, while noting that effects vary. (LLM, conf=0.85)

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  • Germination activates endogenous enzymes including phytases, proteases, and α-galactosidases, which degrade phytic acid, protease inhibitors, and raffinose-family oligosaccharides, thereby enhancing mineral bioavailability and protein digestibility.

    “Germination activates endogenous enzymes, including phytases, proteases, and α-galactosidases, which degrade phytic acid, protease inhibitors, and raffinose-family oligosaccharides, thereby enhancing mineral bioavailability and protein digestibility [34,35].”

    From Valorization of Microalgae as Multifunctional Protein Sources in Plant-Based Systems: Structural, Functional, and Processing Challenges (2026) · cites this paper as [34]

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Research works printed but not linked: 7

  1. Alka, S., Neelam, Y., & Shruti, S. (2012). Effect of fermentation on physicochemical properties & in vitro starch and protein digestibility of selected cereals. International Journal of Agricultural and Food Science, 2, 66– 70.
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  3. Hassan, G. F., Yusuf, L., Adebolu, T. T., & Onifade, A. K. (2015). Effect of fermentation on mineral and anti‐nutritional composition of cocoyam (Colocasia esculenta linn). Sky Journal of Food Science, 4, 042– 049.
  4. Sahlin, P. (1999). Fermentation as a method of food processing production of organic acids, pH‐development and microbial growth in fermenting cereals. Msc Thesis, Lund University, Department of Applied Nutrition and Food Chemistry.
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  6. Taur, A. T., Pawar, V. D., & Ingle, V. M. (1984). Nutritional improvement of grain sorghum by germination. The Indian Journal of Nutrition and Dietetics, 21, 168– 173.
  7. Zheng, Y. M., He, R. G., Zheng, L., Hua, P., Hu, Q. L., & Huang, X. (2006). Change of anti‐nutrient and phytic acid contents in brown rice during sprouting period. Journal of the Chinese Cereals and Oils Association, 21, 1– 4.

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Authors
Nkhata, S. G., Ayua, E., Kamau, E. H., & Shingiro, J.
Affiliations
  • Department of Agriculture Extension Services Lilongwe Malawi
  • University of Eldoret (KE)
  • Rwanda Agriculture Board (RW)
Corresponding author
Nkhata, Smith G.
Venue
Food Science & Nutrition
Publisher
Wiley
Published
2018-10-16
Volume
6
Issue
8
Pages
2446-2458
ISSN
2048-7177 (ISSN-L)
OpenAlex
W2896888197
Cited by
876
References
100
Citations by year
2026: 124 · 2025: 143 · 2024: 159 · 2023: 154 · 2022: 129 · 2021: 103 · 2020: 57 · 2019: 7
FWCI
4.25
Type
journal article
Language
en
Open access
Locations
  • Food Science & Nutrition (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Informationszentrum Lebenswissenschaften (ZB MED) (submittedVersion, cc-by)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Phytase and its Applications
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Food and Agricultural Sciences
Keywords
cereal fermentation, Fabaceae, antinutritional factors, phytic acid, trypsin inhibitor, phenolic compounds, mineral bioaccessibility, protein digestibility, endogenous enzymes, phytase, alpha-amylase, pullulanase, glucosidase, nutrient bioavailability, phytochemicals

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