Tropical Plant Research
An International Journal by Society for Tropical Plant Research
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2020, VOLUME 7 ISSUE 1Pages: 1-5
Changes in nutraceutical attributes in soybean raised at varying growing temperature
Vineet Kumar*, Virender Singh Bhatia, Anita Rani, Priyamvada Jha and Kanchan Jumrani
*ICAR- Indian Institute of Soybean Research, Indore-452001, Madhya Pradesh, India
Abstract:
Investigations concerning the influence of growing temperature on the accumulation of nutraceutical traits in soybean seeds are limited. In the present study, 3 soybean genotypes were raised at 24ºC, 28ºC, and 32ºC; and the freshly harvested seeds were assessed for tocopherol isomers content, vitamin E activity, fatty acid composition, isoflavones content, and thiobarbituric acid (TBA) number. All the genotypes exhibited a sharp increase in α tocopherol, with a concomitant decline in γ tocopherol, at 32ºC. Further, lower levels of α-linolenic acid and TBA number were observed at 32ºC. Changes in the levels of daidzein, genistein and glycitein due to the increase in growing temperature were genotype-dependent. The results showed an increase in the nutraceutical value of soybean raised under elevated temperature.
Investigations concerning the influence of growing temperature on the accumulation of nutraceutical traits in soybean seeds are limited. In the present study, 3 soybean genotypes were raised at 24ºC, 28ºC, and 32ºC; and the freshly harvested seeds were assessed for tocopherol isomers content, vitamin E activity, fatty acid composition, isoflavones content, and thiobarbituric acid (TBA) number. All the genotypes exhibited a sharp increase in α tocopherol, with a concomitant decline in γ tocopherol, at 32ºC. Further, lower levels of α-linolenic acid and TBA number were observed at 32ºC. Changes in the levels of daidzein, genistein and glycitein due to the increase in growing temperature were genotype-dependent. The results showed an increase in the nutraceutical value of soybean raised under elevated temperature.
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