查询词典 ascorbic acid

DETERMINATION OF ASCORBIC AND DEHYDROASCORBIC ACID CONTENT.

维生素C和脱氢维生素C含量的测定。

At the end, researched the antioxidant activities and the stability in the liquid drinks of the pigment from wild rose. The results indicated that the pigment possess antioxidant activities.in lipid. At the pigment concentration of 0.03% and 0.02% exhibits the greatest antioxidant effect for colza oil and lard. The cooperative effects were showed when the pigment was mixed with citric acid and ascorbicespecially ascorbic.

最后，对色素的抗氧化作用和对液体饮料着色的稳定性进行了研究，结果表明：野玫瑰色素对猪油和菜子油都具有一定的抗氧化性，如与抗坏血酸等协同作用，抗氧化效果更好；色素在液体类饮品中比较稳定，着色效果较好。

objective the effects of anthocyanin pigment from maize purple plant on resisting lipid peroxidation were investigated.methods the inhibition of anthocanin pigment from maize purple plant was examined in vitro that autcoxudation of lecithin liposome system induced by fe2+.50 mice were randomly divided into 5 groups.vehicle and different dose anthocyanin pigment from maize purple plant were given respectively,and then experimental injury of mice liver was induced to make use of bromobenzene and the content of mda was determined in liver homogenate.results the inhibition rates of anthocyanin pigment from maize purple plant on linoleic acid oxidation was higher that of ascorbic ascorbic acids.the content of mda in homogenate in middle and high dose of pigment were significantly lower than that in low dose and the injured control group.there were no significat differences in the content of mda in homogenate between low dose group and injury control group.conclusion the anthocyanin pigment from maize purple plant have the capability to resist lipid peroxide.

目的 探讨玉米紫色植株色素抗脂质过氧化的作用。方法体外实验测定玉米紫色植株花色苷色素在fe2+引发的卵磷脂脂质体体系中抗氧化活性。体内实验，取50只小鼠随机分成5组，分别给予溶媒和不同剂量的色素，然后采用溴代苯致实验性肝损伤，测定肝匀浆的丙二醛含量。结果在由fe2+引发的卵磷脂脂质体体系中玉米紫色植株色素对脂质过氧化有明显的抑制作用，抑制率随样品的浓度增高而增大，并且明显优于抗坏血酸。在溴代苯致小鼠实验性肝损伤模型实验中，中、高剂量组的丙二醛含量均低于损伤模型组。低剂量组和损伤模型组比较丙二醛含量差异无统计学意义。

The content of ascorbic acid,the firmness and drip loss of the thawed strawberries were measured to study the effect of different pretreatments on the quality of frozen strawberry.

确定了速冻草莓的最佳冻结时间，并研究了用不同预处理方式处理速冻草莓在冻藏期间的VC含量、pH值的变化，硬度与汁液流失率。

METHODS:① Model group: The rats were made into models of Parkinson disease with damaged corpus striatum by injecting 6-hydroxydopamine (6-OHDA, 12 μg), which was dissolved in 5 μL normal saline containing 2 g/L ascorbic acid, slowly into caudal putamen.

①模型组：将6-羟基多巴(12 μg溶于5μL含2 g/L抗坏血酸的生理盐水中)缓慢注入尾壳核，建立纹状体毁损帕金森病大鼠模型，不干预。

Founded in 2002, Anhwei Tiger become a world leading manufacturer specialized in the production of Stable Ascorbic acid with advanced technology, excellent management and perfect marketing net.

安徽泰格成立于2002年，经过近几年的发展，现已成为位居世界前列的稳定Vc产品制造商，专业致力于我国稳定Vc产品的研究、开发、生产和销售。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。