Bromelain is also called bromelain. Sulfhydryl protease extracted from pineapple juice, peel, etc. Light yellow amorphous powder, slightly peculiar odor. Molecular weight 33000. The optimum pH value for casein, hemoglobin and baee is 6 ~ 8, and the pH value for gelatin is 5.0. The enzyme activity was inhibited by heavy metals. Slightly soluble in water, insoluble in ethanol, acetone, chloroform and ether. It preferentially hydrolyzes the peptide chain on the carboxyl side of basic amino acids (such as arginine) or aromatic amino acids (such as phenylalanine and tyrosine), selectively hydrolyzes fibrin, decomposes muscle fibers, and has little effect on fibrinogen. It can be used for beer clarification, medicinal digestion, anti-inflammatory and detumescence.
Application
1. Application of bromelain in food processing industry
1. Baked food: adding bromelain to the dough can degrade the gluten, and the dough is easy to process after being softened. It can also improve the taste and quality of biscuits and bread.
2. Cheese: used to coagulate casein.
3. Tenderization of meat: bromelain hydrolyzes the macromolecular protein of meat protein into easily absorbed small molecular amino acids and proteins. It can be widely used in the finishing of meat products.
4. For the application of bromelain in other food processing industries, some people have used bromelain to increase the PDI value and NSI value of soybean cake and soybean powder, so as to produce soluble protein products and breakfast, cereal food and beverage containing soybean powder. Others include the production of dehydrated beans, baby food and margarine; Clarified apple juice; Making fudge; Provide digestible food for patients; Add flavor to daily food, etc.
2. Application of bromelain in medicine and health products industry
1. Inhibit the growth of tumor cells
Relevant clinical studies show that bromelain can inhibit the growth of tumor cells.
2. Prevention and treatment of cardiovascular diseases
Bromelain, as a proteolytic enzyme, is beneficial to the prevention and treatment of cardiovascular diseases. It can inhibit the heart attack and stroke caused by platelet aggregation, alleviate the symptoms of angina pectoris, ease arterial contraction and accelerate the decomposition of fibrinogen.
3. For removing scabs from burns
Bromelain can selectively remove the skin, so that the new skin transplantation can be carried out as soon as possible. Animal experiments show that bromelain has no adverse effects on adjacent normal skin. Local use of antibiotics did not affect the effect of bromelain.
4. Anti inflammatory effect
Bromelain can effectively treat inflammation and edema (including thrombophlebitis, skeletal muscle injury, hematoma, stomatitis, diabetes ulcer and sports injury) in various tissues. Bromelain has the potential to activate inflammatory response. Bromelain can also treat diarrhea.
5. Improve drug absorption
The combination of bromelain and various antibiotics (such as tetracycline, amoxicillin, etc.) can improve its curative effect. Relevant studies have shown that it can promote the transmission of antibiotics at the infected site, so as to reduce the dosage of antibiotics. It is inferred that it has a similar effect on anticancer drugs. In addition, bromelain can promote the absorption of nutrients.
3. Application of bromelain in cosmetic industry
Bromelain has excellent effects of rejuvenating skin, whitening and removing spots.
Basic action principle: bromelain can act on the aging cuticle of human skin, promote its degradation, decomposition and removal, promote skin metabolism and reduce skin color depth caused by sunlight. Make the skin look white and tender.
4. Application of bromelain preparation in feed
Adding bromelain into the feed formula or directly mixing it in the feed can greatly improve the utilization and conversion of protein, and develop a wider protein source, so as to reduce the feed cost.
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