Effect of light quality on the antioxidant capacity of adlay sprouts by hydroponic culture
Date Issued
2014
Date
2014
Author(s)
Chen, Xing-Rong
Abstract
Sprouts are currently favored in the world, either beans, grains or vegetables can used to be sprout. This study established adlay sprout cultivation model.
Adlay seed via disinfection, soaking and priming ,then transfered to germination under different lighting sources and hydroponic solutions . Using the phenolic contents (TPC), scavenging DPPH radicals ability (DPPH) and Trolox equivalent antioxidant capacity (TEAC) to assess the functional of adlay sprout. The results show that interaction between lights and hydroponic solutions. Blue and red light are slightly inhibit the growth of sprout with water hydroponic solution. On the contrary, blue and red light promote the growth of sprout with nutrient solution. But light illumination can enhance the total polyphenol content of adlay sprout. On 3 days after sowing, the total polyphenol content of the white, blue and red groups with water hydroponic solution were higher than the darkness control by 41%, 68 % and 18% respectively. On 7 DAS, only the blue group was 40% higher than the darkness control in the total phenol content. Using the Pearson correlation analysis the coefficient among these antioxidant capacities. The coefficient between TPC and DPPH is 0.69. TPC and TEAC is 0.69. DPPH and TEAC is 0.58. Data shows the total polyphenol content and antioxidant capacities are closely related.
Adlay seed increase the nutritional value by germination, and it can be used to produce sprouts. Adlay sprouts are rich in phenolic compounds and excellent antioxidant capacity. It has the potential in the nutraceutical applications.
Subjects
薏苡
芽菜
清除DPPH自由基
皮爾遜相關分析
Type
thesis
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