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malic acid 【化學】蘋果酸,羥基丁二酸。

malice

“ langyatai ” brand cider has rich nutrition , such as ca2 + , p3 + , k + , fe2 + , lactochrome and nicotinic acid etc . and all kinds of vitamin being beneficial to body , all above are creamed from apple , meanwhile , after low - temperature fermentation , some organic nutrition of low sugar and high protein are produced , including malic acid , butanedioic acid , tartaric acid , seventeen amino acid and high powerful , high nutritional alcohol ester etc 瑯琊臺蘋果酒營養豐富,提煉了蘋果的主要精華,如蘋果中的鈣、磷、鐵、鉀、核黃素和尼可酸等二十多種微量元素,以及各種對人體有益的維生素.同時經過低溫生化發酵,生成了低糖類高蛋白等各種有機營養物質,如蘋果酸,琥珀酸,酒石酸及17種氨基酸和高能量高營養的醇酯等。

Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments . the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose , sucrose , malic acid , mannitol ) , propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum , at a ph range of 4 to 8 . 5 , at a saline concentration range of 0 . 01 % to 1 . 5 % ; low nlv “ concentration had little effect on its nitrogenase activity . ara could also be detected when it grow in the culture media with 5mmol / l ntv “ W12菌株對環境因子的適應性研究:無氮培養條件下,測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響,結果表明,在15 - 40下均能生長并表達固氮酶活性,其最適生長及固氮的溫度為25 - 35 ;能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長并固氮,當培養基中同時存在蔗糖和蘋果酸時,細菌生長和固氮活性最強;在偏酸和偏堿的條件下( ph4 . 5 - 8 . 5 )均能保持較強的生長勢和較高的固氮酶活性,并能通過調節自身代謝平衡并適應環境的酸、堿性變化,使培養液趨于中性:能耐受較高的滲透壓,培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大,當naci濃度升至2時,菌株的生長勢及固氮酶活性才有所下降:低濃度的鉸對其固氮酶活性影響不大,在0

The process employs sol - gel to coat al2o3 micro porous substrate with a sio2 thin membrane at first . than the pva membranes were prepared by coating porous sio2 / al2o3 membranes with a pva layer and further cross - linking its surface , malic acid and 5 - sulfosalicylic acid as crosslinking agents 利用靜態杯式膜性能測試裝置研究了各種膜的純水通量、對nacl和不同價態的無機鹽離子的截留率;用傅立葉紅外光譜儀和掃描電鏡對膜的結構和形貌表面有機薄層成分進行分析。

The preparation methods , reaction mechanism and properties of poly ( malic acid ) synthesized by direct polycondensation are reviewed , and the prospects in this field are also introduced 作者綜述了直接聚合法合成聚蘋果酸的方法、反應機理及性質,并展望了直接聚合法合成聚蘋果酸的前景。

Tomatoes are rich in organic acids such as malic acid , citric acid , formic acid , vitamin c can protect , in the process of cooking was not damaged , vitamin utilization 西紅柿含有豐富的有機酸如蘋果酸、檸檬酸、甲酸,可保護維生素c ,使之在加工烹飪過程不被破壞,增加維生素的利用率。

Effect of different coated organic acids ( including citric acid , oxalic acid , and malic acid ) on detoxification of aluminum of wheat in red soil was studied using pot experiment 摘要通過盆栽試驗研究紅壤施用檸檬酸、草酸和蘋果酸三種不同包膜有機酸對不同小麥品種解鋁毒的作用。

It is broken down by a reversal of the first two pathways , or by deamination to glyoxylate , followed by conversion to malic acid and further breakdown in the krebs cycle 它可在前兩種方法中被分解,或者通過脫氨作用生成乙醛酸,然后轉化為蘋果酸,進一步在三羧酸循環中被分解。

Fruit and vegetable juices - enzymatic determination of d - malic acid content - nad spectrometric method ; german version en 12138 : 1997 水果汁和蔬菜汁. d -蘋果酸成分中酶含量的測定. nad分光

Poly ( malic acid ) is a new kind of water - soluble polymer with favorable biodegradability and biocompatibility 聚蘋果酸是一種具有生物降解性和生物相容性的新型水溶性高分子。

Fruit and vegetable juices - enzymatic determination of d - malic acid content - nad spectrometric method 水果汁和蔬菜汁. d -蘋果酸含量的酶測定. nad分光光度方法

Fruit and vegetable juices . enzymatic determination of d - malic acid content . nad spectrometric method 水果和蔬菜汁. d -蘋果酸含量酶催的測定. nad光譜法

For example , fumarase catalyzes the interconversion of malic acid and fumaric acid 如延胡羧酸酶能催化蘋果酸和反丁烯二酸的可逆反應。

Chlorella growth factor , honey , glucose liquid , dl - malic acid and natural flavour 綠藻成長因子蜂蜜果糖葡萄糖蘋果酸及天然香料。

Synthesis and structural characteristics of l - - malic acid pillared layered double hydroxides 蘋果酸柱撐水滑石的合成及結構表征

The measure and correlation of solubility of l - malic acid in acetone and 2 - butanone 蘋果酸在酮類溶劑中溶解度的測定及關聯

Effects of malic acid on the release and absorption of phosphorus in greenhouse soil 蘋果酸對溫室土壤磷釋放與吸附的影響

Food additives l - malic acid 食品添加劑l -蘋果酸

The progress of the production and application of l - malic acid 蘋果酸的生產及應用研究進展

Taste : dl malic acid , citric acid represents 產品: dl蘋果酸檸檬酸代表產品: dl蘋果酸