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Application of Calcium Sulfate in Fermented Yeast
Calcium sulfate is used as an inorganic salt to provide the necessary sulfate and calcium for yeast growth. In the inorganic salts, the sulfur and calcium belongs to a large number of elements. Although these two elements’ proportions are not much in the dry weight of yeast cells (sulfur: 0.3-1.0; calcium 0.1 to 0.5), but they are essential. Since it is necessary to know the composition of the medium in a small test, it is often supplied by the salt having a high solubility such as ammonium sulfate, magnesium sulfate, ferrous sulfate, calcium chloride, calcium nitrate, and the like. But many of them can not be directly used for yeast fermentation of the food industry due to safety problems, alkaline, the introduction of other unnecessary ions and other reasons. Natural calcium sulfate (gypsum) is widely used in the food industry because its solubility is not high, the pH of the aqueous solution is neutral and safe.
Calcium Sulfate (Gypsum) is used in the complex flour modifier during dough fermentation. Its main role is as yeast food, to provide the necessary mineral elements for yeast growth and increase the growth and reproduction vigor of yeast, shorten or increase its fermentation capacity, improve the production of carbon dioxide and fermentation process intermediate flavor products and will not change the natural fragrance of wheat at the same time. It is also used as a water-absorbing agent, a dispersant and a filler in a modifier. At the same time calcium sulfate can be used as calcium nutrition enhancer for dough fermentation of food, as high calcium food.
硫酸鈣(gai)在發酵酵母中的應用
硫酸鈣作為無機(ji)(ji)鹽來(lai)提供酵母(mu)生長所必須(xu)的硫酸鹽和鈣。在無機(ji)(ji)鹽中這兩種元(yuan)素(su)都屬于大量(liang)元(yuan)素(su)，雖然這兩種元(yuan)素(su)占酵母(mu)細胞干重的比例不大（硫：0.3-1.0；鈣0.1到0.5），但都是必不(bu)(bu)可少的(de)。由(you)于在小型培(pei)(pei)養(yang)時需要(yao)準確(que)的(de)知道培(pei)(pei)養(yang)基(ji)成(cheng)分所(suo)以(yi)常(chang)用硫(liu)酸(suan)(suan)(suan)銨、硫(liu)酸(suan)(suan)(suan)鎂、硫(liu)酸(suan)(suan)(suan)亞鐵、氯(lv)化鈣、硝酸(suan)(suan)(suan)鈣等溶解(jie)度(du)高的(de)鹽進行供應。但其中很多都由(you)于安全問題、酸(suan)(suan)(suan)堿性、引入其它不(bu)(bu)必要(yao)的(de)離子(zi)等原因無法直接用于酵(jiao)母發(fa)酵(jiao)的(de)食品(pin)行業。天然的(de)硫(liu)酸(suan)(suan)(suan)鈣（石(shi)膏(gao)）其溶解(jie)度(du)不(bu)(bu)高，水溶液的(de)pH為中(zhong)性且(qie)安全等性質在食品中(zhong)應用廣(guang)泛。
硫(liu)酸鈣(gai)(gai)(gai)（石膏）在面(mian)團發酵(jiao)(jiao)過(guo)程中，多數被應用(yong)于復合的(de)(de)面(mian)粉改良劑(ji)(ji)中。其主要作(zuo)用(yong)是作(zuo)為(wei)酵(jiao)(jiao)母(mu)食物(wu)，提供酵(jiao)(jiao)母(mu)生長(chang)所需的(de)(de)礦質元素，增加(jia)酵(jiao)(jiao)母(mu)的(de)(de)生長(chang)繁(fan)殖活(huo)力，縮短(duan)和增加(jia)其發酵(jiao)(jiao)能力，提高二氧化碳的(de)(de)和發酵(jiao)(jiao)過(guo)程中間風味產(chan)物(wu)的(de)(de)產(chan)量。不改變小(xiao)麥(mai)的(de)(de)自(zi)然芳香(xiang)。其還作(zuo)為(wei)改良劑(ji)(ji)中的(de)(de)吸(xi)水劑(ji)(ji)，分(fen)散劑(ji)(ji)和填充劑(ji)(ji)。同(tong)時(shi)硫(liu)酸鈣(gai)(gai)(gai)還可以作(zuo)為(wei)鈣(gai)(gai)(gai)營養(yang)強化劑(ji)(ji)用(yong)于面(mian)團發酵(jiao)(jiao)的(de)(de)食品中，作(zuo)為(wei)高鈣(gai)(gai)(gai)食品。
