Recent advances in enrichment, regulation and the functional foods of γ-aminobutyric acid in germinated brown rice
γ-aminobutyric acid (GABA), as a four-carbon and non-protein amino acid, is one of the important bioactive components in germinated brown rice. In this paper, the recent researches on GABA in germinated brown rice were summarized. It was found that GABA was mainly located in the rice germ, and the G...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2024-06-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2023.10.091 |
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| Summary: | γ-aminobutyric acid (GABA), as a four-carbon and non-protein amino acid, is one of the important bioactive components in germinated brown rice. In this paper, the recent researches on GABA in germinated brown rice were summarized. It was found that GABA was mainly located in the rice germ, and the GABA content exhibited significant genetic diversity. The GABA content of indica rice was generally higher than that of japonica rice. Soaking conditions such as soaking temperature, soaking time and soaking method significantly affected GABA production in germinated brown rice. Meanwhile, the accumulation rate and amount of GABA were closely related to germination conditions such as germination temperature, germination time and germination method. In addition, abiotic stress treatments such as adversity stress, ultrasonic treatment and pulsed light irradiation could effectively promote GABA accumulation in germinated brown rice. The GABA branch and polyamine degradation pathway are the main biosynthesis and metabolic pathways of GABA in germinated brown rice, which are regulated by several key enzymes, such as glutamic acid decarboxylase, GABA transaminase and succinic semialdehyde dehydrogenase. The potential biological functions of GABA in germinated brown rice and the development and application of functional foods such as germinated brown rice staple foods and beverages rich in GABA were discussed, and the future work on GABA in germinated brown rice was also prospected. This paper provides a theoretical reference for the breeding of GABA-enriched rice and the development of nutritional foods of GABA-enriched germinated brown rice. |
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| ISSN: | 1008-9209 2097-5155 |