Method for simultaneously extracting natural pigment and pectin from passion fruit peel

• Main Authors: TANG YAYUAN, HE XUEMEI, YI PING, XIN MING, LIU GUOMING, WANG XUEFENG, LI CHANGBAO, SUN JIAN, SHENG JINFENG
• Format: Patent
• Language: Chinese; English
• Published: 20.08.2021
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; DYES; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; POLYSACCHARIDES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides a method for simultaneously extracting natural pigment and pectin from passion fruit peel, which relates to the technical field of food processing and comprises the steps of raw material pretreatment, deep eutectic solvent solution preparation, pigment and pectin combined extraction, pigment and pectin separation, pigment purification and concentration and pigment microencapsulation. The deep-eutectic solvent is combined with an embedding technology, so that the prepared natural pigment is high in stability. Betaine, L-tryptophan and acetic acid in the deep-eutectic solvent can obviously improve the stability of the pigment; and the color value of the pigment can be well maintained in the pigment extraction process. Meanwhile, a microencapsulation technology is combined, and the natural pigment is secondarily protected by adopting a specially-made maltodextrin, Arabic gum and konjac glucomannan composite wall material, so that the color value of the pigment can be well maintained in the