中文字幕人妻在线视频,五月天久久婷婷亚洲,蜜臀H亚洲,亚洲不卡色一区

技術(shù)文章

Technical articles

當(dāng)前位置:首頁(yè)技術(shù)文章玉米蛋白,黍膠質(zhì);玉米朊;玉米醇溶蛋白 寶葉提供

玉米蛋白,黍膠質(zhì);玉米朊;玉米醇溶蛋白 寶葉提供

更新時(shí)間:2013-06-03點(diǎn)擊次數(shù):2098

Zein is a prolamine; an alcohol-soluble protein present
in amounts of 2.5-10% (dry basis) in corn. Zein is a
common component used in the manufacture of
plastics, paper coatings, adhesives, substitutes for
shellac, laminated board, and solid color printing films.
Zeins are the main storage proteins found in the seeds
of maize. Following protein translation, the zeins are
stored in the rough endoplasmic reticulum
(ER)-derived protein bodies. The accumulation of zein
in these ER-derived protein bodies results in the
formation of the endosperm - the food storage body of
seeds.
Currently, there are four classes of zein: α, β, γ, and δ.
These classes are expressed sequentially in maize
and are found to interact with each other for stability.
Zein from corn was reported to be approximay
35% α-zein, which includes 2 prominent bands of
22 and 24 kDa. β-zein fails to enter an SDS-PAGE gel
without reduction. Reducing SDS-PAGE analysis
shows that β-zein has 3 major bands of 24, 22, and
14 kDa.1 The amino acid sequences have been
published.2

 

Precautions and Disclaimer
For Laboratory Use Only. Not for drug, household or
other uses.
Preparation Instructions
Zein is soluble in aqueous alcohols, glycols, ethyl
ether, furfuryl alcohol, tetrahydrofurfuryl alcohol, and
aqueous alkaline solutions of pH 11.5 or greater. Zein
is insoluble in water, acetone, and anhydrous alcohols
(except methanol).
Storage/Stability
Zein is rapidly denatured in solution and becomes
insoluble.
References
1. Esen, A., Separation of alcohol-soluble proteins
(zeins) from maize into three fractions by
differential solubility. Plant Physiol., 80, 623-627
(1986).
2. Phillips, R. L., and McClure, B. A., Elevated
protein-bound methionine in seeds of a maize line
resistant to lysine plus threonine. Cereal Chem.,
62, 213-218 (1985).

不卡不卡欧美| 日韩一区二区国产| 欧美自慰一区二| 久久久久99精品成人片亚洲赌| 黄色成人久久久久| 日本A一级| 亚洲图片无码99| ,一区二区三区一级黄片| 日韩欧美成人视频免费在线观看| 欧美日韩综合激情| 国欧美日韩综合| 91精品国产91久久久久久蜜臀| 亚洲色图3| 肏屄免费看电影A区B区| 最激情av| 中文字幕一区第一页| 国产一级黄色片久久久| 国产主播-第1页 - 淫乐宝| AV一区在线播放| 天天干天天弄天天弄干| 一区 二区 情 色| 久久久精品视频九区97| 国产精品免费中文| 亚洲AV粉嫩性色AV| 日韩精品女优一区| 综合伊人久久久久久久| 天日夜夜操天天摸孕妇| 久久久视频无码三级片| 精品少妇久久九九99久久| 在线免费观看小黄片视频| 久久久久国产一区二区三区八卦海| 午夜福利久久久久| 91精品成人·com| 免费啪啪啪一区二区v| 国产亚州精品女人久久久久久| 台湾精品一区二区三区| 美女丝袜诱惑一区二区| 欧美精品超碰| 小电影韩国日本一起草极品| 中文字幕一区二区在线资源| 黄色精品一区二区三区色|