97国产精品人人爽人人做 I 日本r级电影在线观看 I 污91视频 I 性中国xxx极品hd I 偷偷在线观看免费播放电视剧大全 I 番号动态图 I 日韩小视频网站 I 国产色资源 I 国产精品乱码一区二区三区 I av在线不卡电影 I av电影站 I 亚洲成人黄色av I 丁香花电影版免费观看第二季 I 麻豆午夜视频 I av在线色 I 日日夜夜欧美 I a视频在线看 I 日韩一区欧美一区 I 毛片美女 I 97精品国产露脸对白 I 久久免费视频一区二区 I 夜夜嗨av色一区二区不卡 I 亚洲黄一区二区 I 成人毛片18女人 I 四虎8848a I 欧美有码在线视频 I 极品尤物视频在线观看 I 国模欢欢大尺度啪啪 I 新版资源中文在线www I 亚洲国产成av人天堂无码 I 国产成久久免费精品av片 I 极品少妇小泬50pthepon I 日本中文字幕中出在线 I 色综合天天狠 天天透天天伊人 I 成人免费高清观看 I 精品亚洲韩国一区二区三区 I 91精品夜夜 I 成人白浆超碰人人人人 I 亚洲青青草原男人的天堂

×

Vitamin A

Products Introduction

Basic information

Vitamin A, chemically known as retinol, was the first vitamin to be discovered.

Edges of NHU

As one of the largest vitamin manufacturers in the world, we provide series of formulations to meet requirements of vitamin A antioxidants from different customers.

As one of the few large vitamin suppliers with the ability to produce VA variety of antioxidant VA products, we provide vitamin A series products that perfectly replace ETQ products for the European Market, and ETQ antioxidant VA products for other markets to meet customers long-standing usage habits.

NHU Nutrition Research Institute (NHU-NRI) is dedicated to extensive applied research in the space of nutrition to accommodate itself to growing market demand. We set our hearts on providing better solutions for users through product R&D, research on nutrition and applied technologies, as well as technical services. Every VA product that we launched on the market has passed stringent application test to assure that it meets the requirements of downstream customers. 

Stability

Considering the poor stability and high susceptibility of vitamins, their utilization rate is fairly low. In the practical application process, there are many factors affecting the stability of the product.
1.moisture
2.storage time
3.temperature
4.trace elements and minerals
5.carriers and diluents
6.feed processing methods
In addition to the above factors, light, embedding methods, and interaction among vitamins can all result in the change of vitamin content. For example, the high water-absorbency and alkalinity of choline chloride has destructive effect on other vitamins, which is exacerbated when synergized with other trace elements. Vitamin A is extremely unstable as it contains conjugated?double?bonds. When exposed to UV-light, it is prone to isomerize, thus resulting in lower retention rate. Under the light, the dimerization reaction readily occurs, which reduces the product’s bioavailability.

Products Recommended