Method for preparing natural food antiseptic chitin and its use

The present invention relates to a preparation method of natural food preservative chitosan and its application. Said invention uses the chitosan whose deacetylated extent is above 85% as raw material, and adopts the following steps: dissolving said raw material by using acetic acid, adding hydrochl...

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Bibliographische Detailangaben
1. Verfasser:	WENSHUI,WU XIA
Format:	Patent
Sprache:	eng
Schlagworte:	FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	The present invention relates to a preparation method of natural food preservative chitosan and its application. Said invention uses the chitosan whose deacetylated extent is above 85% as raw material, and adopts the following steps: dissolving said raw material by using acetic acid, adding hydrochloric acid to make mixed acid hydrolysis at 60-90dec.C for 6-10 hr, then regulating pH value, making centrifugal precipitation and drying so as to obtain the invented chitosan with high antibacterial property, its average relative molecular mass is 10-130000. It can be added into pickled product, semi-dried product, fermented product, fruit juice food and vegetable food, and can prolong their storage life.