Water stress affects on cell membrane lipid oxidation and calcification of chestnut (Castanea mollissima Bl.)
Abstract Calcification, a kind of quality deterioration, occurs in chestnut due to fast water loss when stored at low relative humidity (RH) and room temperature. In this study, the relationship between water loss rate and plasma membrane lipid oxidation in chestnut stored at low (50–55%) RH and high (85–90%) RH at 25°C has been investigated to understand the mechanism of calcification. Water loss rate per day in chestnut at low RH was 6% and 1.5 times that at high RH, while the calcification index at low RH was 0.4 and 3.5 times that at high RH. At low RH, the activities of plasma membrane lipase and lipoxygenase (LOX), the content of malonaldehyde (MDA) and saturated fatty acid (SFA) in chestnut were higher than those at high RH. Meanwhile, unsaturated fatty acid (UFA) index decreased in low RH, but increased in high RH. The correlation coefficient (r) between MDA content and calcification index in chestnut stored at low RH and high RH was 0.928 ** and 0.937 ** respectively, which implied that the plasma membrane lipid oxidation induced by fast water loss might be related closely to occurrence of calcification in chestnut. In contrast, at high RH, the moisture content in chestnut decreased slowly and the hydrolysis and oxidation of membrane lipid were a low, and was associated with better maintenance of quality. Highlights Low RH (50–55%) increased water loss and calcification in chestnut. High RH (85–90%) maintained better chestnut quality. Low RH increased activities of lipase and lipoxygenase. The unsaturated fatty acid index declined but increased in high RH. Malonaldehyde content in chestnut accumulated at low RH more than at high RH. Graphical abstract The relationship between the occurrence of calcification and membrane lipid metabolism in the chestnut fruit stored at low relative humidity. [DISPLAY OMISSION]
- 원문이 없습니다.
- DOI : http://dx.doi.org/10.1016/j.postharvbio.2016.12.005
- Elsevier : 저널> 권호 > 논문
유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.
원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.
NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.
- 이 논문과 함께 출판된 논문 + 더보기