Читать книгу Bioprospecting of Microorganism-Based Industrial Molecules - Группа авторов - Страница 33

In this section, we will be briefly describing different microbial gums that are important in various industries due to their properties. The different types of microbial gums and their producer organisms have been mention in Table 3.1.

Table 3.1 Microbial gums and their producer organisms.

Microbial gum	Microorganism	Monosaccharides present	Linkages present	References
Xanthan gum	Xanthomonas campestris	Glucose, mannose, and glucoronic acid (2:2:1)	β‐(1,4), β‐(1,2), and α‐(1,3)	[14]
Gellan gum	Sphingomonas elodea, Sphingomonas paucimobilis ATCC 31461	D‐glucose, D‐glucoronic acid, and l‐rhamnose (2:1:1)	β‐(1,3), β‐(1,4), and α‐(1,4)	[20]
Welan gum	Sphingomonas spp ATCC 31555	L‐mannose, L‐rhamnose, D‐glucose, and D‐glucuronic acid (1.0:4.5:3.1:2.3)	β‐(1,3), β‐(1,4), and α‐(1,4)	[3]
Rhamsan gum	Sphingomonas spp. RH‐1	D‐glucose, D‐glucoronic acid and L‐rhamnose	β‐(1,3), β‐(1,4), β‐(1,6), and α‐(1,4)	[21]
Diutan gum	Sphingomonas sp. ATCC 53159	D‐glucose, D‐glucoronic acid, and L‐rhamnose	β‐(1,3), β‐(1,4), and α‐(1,4)	[22]
Pullulan	Aureobasidium pullulans Eurotium chevalieri, Cryphonectria parasitica, Cyttaria darwinii, and yeast Rhodotorula baracum	D‐glucose	α‐(1,6) and α‐(1,4)	[5, 23]
Scleroglucan	Sclerotium glucanicum	D‐glucose	β‐(1,3) and β‐(1,6)	[24]
Curdlan	Alcaligenes faecalis	D‐glucose	β‐(1,3) and β‐(1,6)	[6]
Levan	Bacillus subtilis, Bacillus polymyxa, Aerobacter levanicum, Leuconostoc mesenteroides, Streptococcus sp., Pseudomonas sp., and Corynebacterium laevaniformans.	D‐fructose	β‐(2,6) and β‐(2,1)	[12]
Dextran	Various LAB genera‐like Leuconostoc, Lactobacillus, Streptococcus, Pediococcus, and Weissella	D‐glucose	α‐(1,6), α‐(1,2), α‐(1,3) and α‐(1,4)	[25, 26]