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Research progress of the structure, gel property and application of tamarind xyloglucan(PDF)

Journal of Forestry Engineering[ISSN:2096-1359/CN:32-1862/S]

2020 No.06
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Research progress of the structure, gel property and application of tamarind xyloglucan
JIANG JianxinTANG Meng△ HAN Minghui
College of Material Science and Technology, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
Tamarindus indica L. xyloglucan structure gel property food medicine cellulose modification
Tamarindus indica L. has high economic value, and is widely distributed around the world, especially in India, Bangladesh, Thailand and Indonesia in Asia. Tamarind can produce pods of 150-300 kg per plant, and the fruiting period can be more than 200 years. The fruit is famous for its sweet and sour taste, and the content of xyloglucan in its seed is up to 60%. At present, Tamarind xyloglucan (XG) is a kind of xyloglucan that can be commercially produced in large quantities. It has unique rheological properties, gelation properties and distinguished mucosal adhesion properties. In the food field, it is high quality dietary fiber and food additives (as artificial stabilizers, thickeners, and gelling agents). Xyloglucan has advantages of noncarcinogenicity, biocompatibility, high drugholding capacity, high thermal stability and antiinflammatory, therefore can be used as drug delivery carrier and wound dressing in the medical field. In vitro experiments and clinical studies have shown that the XG mucosal protective agents have good therapeutic effects on gastrointestinal diseases, urinary tract infections, nasal respiratory diseases and dry eyes. In addition, by enzymatically removing partial side chains, the degalactosylated XG can form unique thermoresponsive gel, and was developed as biodegradable and injectable thermoreversible XG based hydrogel for prevention of postoperative adhesion and was considered for the potential medical applications. Its application in the field of medicine is the current research hotspot of XG. Moreover, XG exhibits strong affinity to cellulose, and has been widely used in cellulose modification. XG is also an effective inducer of plant antitoxin. It can be used as a biological insecticide to reduce the wilt of crops caused by pathogens, so as to promote plant growth, therefore has potential application value in agriculture. The use of natural materials instead of petroleumbased materials is of great significance to the sustainable development of society. XG has unique performance, and the industrial chain of which has been completed in foreign countries. Importantly, its production cost is lower, so it has more development advantages than other polysaccharides. Due to the special and complex structure of XG, studies on the fine structure and the relationship between structure and properties of XG polymers have not been carried out indepth. In this review, the structure and properties of XG and its unique gel properties were firstly introduced in detail, and the application research progress of XG in the fields of food, medicine and cellulose modification was summarized. Finally, the deficiencies in the study of XG were analyzed, and the prospects of further research and applications of XG were discussed.



Last Update: 2020-11-09