CAJ | 학술논문

本研究测定蒸馏酒样所需的Trolox(6-羟基-2,5,7,8-四甲基色烷-2-羧酸)浓度范围内,用铜离子还原法(CUPRAC)来检测玫瑰香蒸馏酒的抗氧化能力.该测定方法准确度、稳定性、重复性、精密度均较高.检测结果表明,添加玫瑰花为发酵辅料的蒸馏酒样还原能力比未添加玫瑰花的酒样明显提高.且随着辅料量的增加,单位辅料贡献的还原能力也呈上升趋势.由此可见,增加玫瑰花添加量复合发酵的蒸馏酒不仅可使玫瑰花香味更加浓郁,而且抗氧化效果也更佳.同时,添加干花发酵得到的蒸馏酒样还原能力均大于添加鲜花发酵得到的蒸馏酒,且上升快.
본연구측정증류주양소수적Trolox(6-간기-2,5,7,8-사갑기색완-2-최산)농도범위내,용동리자환원법(CUPRAC)래검측매괴향증류주적항양화능력.해측정방법준학도、은정성、중복성、정밀도균교고.검측결과표명,첨가매괴화위발효보료적증류주양환원능력비미첨가매괴화적주양명현제고.차수착보료량적증가,단위보료공헌적환원능력야정상승추세.유차가견,증가매괴화첨가량복합발효적증류주불부가사매괴화향미경가농욱,이차항양화효과야경가.동시,첨가간화발효득도적증류주양환원능력균대우첨가선화발효득도적증류주,차상승쾌.
In this study,we investigated the antioxidant capacity of rose petal liquor by CUPRAC in the concentration range of trolox (6-hy-droxy-2,5,7,8-tetramethylchroman-2-carboxylic acid) required by the distillation of samples. The experimental results suggested that such method had high precision, high stability, and high repeatability. The detection results showed that the addition of rose petals in liquor fermenta-tion could evidently increase the reduction ability of samples, and with the increase of the addition amount of rose petals, the reducing power per unit kept increasing. Thus, the increase of the adding amount of rose petals for complex fermentation could not only make liquor with stron-ger rose aroma, but also achieve better antioxidant capacity. Meanwhile, the reducing capacity of liquor samples with the addition of dried rose petal was higher than that with the addition of fresh rose, and its increasing trend was faster.