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논문 기본 정보

자료유형
학술저널
저자정보
김주열 (국립농업과학원) 이수인 (국립농업과학원) 김진아 (국립농업과학원) 박수철 (국립농업과학원) 정미정 (국립농업과학원)
저널정보
한국식물생명공학회 Plant Biotechnology Reports Plant Biotechnology Reports 제11권 제5호
발행연도
2017.10
수록면
355 - 364 (10page)

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Previous studies have shown that sound wave treatment can affect the expression of plant genes and improve the growth. So, we investigated the ability of sound waves to increase AsA (L-ascorbic acid) content in alfalfa (Medicago sativa) sprouts in this study. Sprouts were exposed to a range of sound wave frequencies for two 1-h periods per day for various numbers of days. Most sound wave treated sprouts had a higher AsA content than untreated sprouts. In addition, the activity level of superoxide dismutase, an enzyme with potent antioxidative properties, was increased in sound wave-treated sprouts. The AsA content varied in response to sound wave treatment. Most processing conditions, including 500 and 1000 Hz, increased AsA content by 24?50%; however, some treatment conditions caused reduced AsA content during sprout growth. Furthermore, AsA content during sprout storage was increased by most sound wave treatment conditions, with 13?36% increases observed following 800 and 1000 Hz sound wave treatments compared to untreated sprouts. To investigate the mechanisms underlying changes in AsA content, we analyzed the expression levels of AsA biosynthesis-related genes. We found that several genes, including VTC1, VTC2, VTC4, GME, L-GalDH, GLDH, MDHAR, and DHAR1, displayed differential expression in response to sound wave treatment. Therefore, sound wave treatment may be a viable method for increasing the nutritional contents of sprouted vegetables.

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