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Enhancement of the Production of Bioactive Microalgal Metabolites by Ultraviolet Radiation (UVA 365 nm)
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2018-09-11 00:00:00 , DOI: 10.1021/acs.jafc.8b03789 Jim Junhui Huang 1, 2, 3 , Shaoling Lin 2, 4 , Wenwen Xu 2, 5 , Peter Chi Keung Cheung 2
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2018-09-11 00:00:00 , DOI: 10.1021/acs.jafc.8b03789 Jim Junhui Huang 1, 2, 3 , Shaoling Lin 2, 4 , Wenwen Xu 2, 5 , Peter Chi Keung Cheung 2
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Two marine microalgae, Nitzschia closterium and Isochrysis zhangjiangensis, treated for 9 days with photosynthetically active radiation (PAR), were subjected to 3 days of ultraviolet light band A at 365 nm (UVA365) followed by a 3 day post-UVA PAR treatment. Compared with the control that only had PAR treatment, UVA365 treatment significantly (p < 0.05) increased the amounts of total xanthophylls in N. closterium and I. zhangjiangensis by up to 3.53- and 1.23-fold, respectively, after 3 days of UVA365 irradiation. In particular, UVA365 treatment markedly (p < 0.05) increased two major bioactive xanthophyll pigments, fucoxanthin in N. closterium and diadinoxanthin in I. zhangjiangensis, by up to 1.97- and 1.52-fold, respectively. UVA365 treatment significantly (p < 0.05) increased the accumulation of another bioactive microalgal metabolite, total mycosporine-like amino acids, in N. closterium and I. zhangjiangensis by up to 1.40- and 1.30-fold, respectively. UVA365 irradiation has potential as an efficient approach for enhancing the production of valuable microalgal metabolites.
中文翻译：
紫外线（UVA 365 nm）增强生物活性微藻代谢产物的产生
两个海洋微藻，新月菱形藻和球等鞭金zhangjiangensis，9天与光合有效辐射（PAR）处理，在365nm处（UVA365），随后在3天后UVA PAR治疗进行紫外光频带A的3天。与对照，只有具有PAR处理相比，UVA365治疗显著（p <0.05）增加的总叶黄素的量在新月菱形藻和I. zhangjiangensis多达3.53-和1.23倍，分别经过UVA365照射3天。特别是，UVA365处理显着（p <0.05）增加了N. closterium中两种主要的生物活性叶黄素色素，岩藻黄质。和diadinoxanthin在I. zhangjiangensis分别由多达1.97-和1.52倍。UVA365处理显着（p <0.05）使N. closterium和I. Zhangjiangensis中另一种生物活性微藻代谢物（总霉菌素样氨基酸）的积累分别增加了1.40倍和1.30倍。UVA365辐射作为提高有价值的微藻代谢产物生产的有效方法具有潜力。
更新日期：2018-09-11
中文翻译：
紫外线（UVA 365 nm）增强生物活性微藻代谢产物的产生
两个海洋微藻，新月菱形藻和球等鞭金zhangjiangensis，9天与光合有效辐射（PAR）处理，在365nm处（UVA365），随后在3天后UVA PAR治疗进行紫外光频带A的3天。与对照，只有具有PAR处理相比，UVA365治疗显著（p <0.05）增加的总叶黄素的量在新月菱形藻和I. zhangjiangensis多达3.53-和1.23倍，分别经过UVA365照射3天。特别是，UVA365处理显着（p <0.05）增加了N. closterium中两种主要的生物活性叶黄素色素，岩藻黄质。和diadinoxanthin在I. zhangjiangensis分别由多达1.97-和1.52倍。UVA365处理显着（p <0.05）使N. closterium和I. Zhangjiangensis中另一种生物活性微藻代谢物（总霉菌素样氨基酸）的积累分别增加了1.40倍和1.30倍。UVA365辐射作为提高有价值的微藻代谢产物生产的有效方法具有潜力。
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