Pullulan is a microbial exopolysaccharide produced by polymorphic fungus Aureobasidium pullulans. Owing to its structure, consisting of α(1→4) and α(1→6) linkages, it has unique properties and hence is suitable for a variety of commercial applications in various field including food, pharmaceuticals, and biomedical. In this chapter, biosynthesis, production through microbial fermentation, and influence of fermentation conditions like pH, temperature, aeration, agitation on microbial growth, pullulan yield, pullulan purity, and molecular weight are discussed. Later, options of using various agricultural wastes as carbon source for pullulan production are considered

morphology, exopolysaccharide, pullulan, Aureobasidium pullulans, agricultural residues

• Compound ID: 21072
  

  -6)-a-D-Glcp-(1-4)-a-D-Glcp-(1-4)-a-D-Glcp-(1-

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  Structure type: polymer chemical repeating unit ; 50000-4000000
  Trivial name: pullulan
  Compound class: glucan, polysaccharide
  Reference(s) to other database(s): GTC:G71532WE
  
   
  
  Aureobasidium pullulans, Aureobasidium pullulans var. melanogenum P16, Aureobasidium pullulans RG-5, Aureobasidium pullulans P 56, Aureobasidium pullulans AP329, Aureobasidium pullulans MTCC 2670, Aureobasidium pullulans NRRL Y-6220, Aureobasidium pullulans RBF 4A3, Aureobasidium pullulans 2552, Aureobasidium pullulans 140B, Aureobasidium pullulans 142, Aureobasidium pullulans MTTC 1991, Aureobasidium pullulans SU No 18, Aureobasidium pullulans NRRL Y-2311-1, Aureobasidium pullulans NCIM 1049
  CSDB ID 48441 (all data & tools)

Pullulan is a microbial exopolysaccharide produced from Aureobasidium pullulans by submerged fermentation of a medium supplemented with carbon, nitrogen and other essential nutrients. These nutrients are expensive which increase the cost of pullulan production. The requirement of alternative cost-effective substrates for pullulan production is a prerequisite. Agro-based industries generate a large volume of solid/liquid waste and its accumulation generates a severe environmental impact. These wastes are composed of carbohydrates, proteins and other constituents, and can be used as substrates for the development of low-cost processes for the production of various microbial products. This could be a good environmental friendly waste management system. Pullulan production from agro-industrial wastes can be carried out by both submerged and solid-state fermentation by A. pullulans. Owing to its unique properties, pullulan has wide applications in many food-based industries. This review highlights pullulan production from agro-industrial wastes and potential applications of pullulan in various food industries.

pullulan, Aureobasidium pullulans, submerged fermentation, solid-state fermentation, agro-industrial waste

• Compound ID: 22175
  

  -6)-a-D-Glcp-(1-4)-a-D-Glcp-(1-4)-a-D-Glcp-(1-

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  Structure type: polymer chemical repeating unit ; 45000-600000
  Trivial name: pullulan
  Compound class: glucan, polysaccharide
  Reference(s) to other database(s): GTC:G71532WE
  
   
  
  Aureobasidium pullulans P 56, Aureobasidium pullulans MTCC 2195, Aureobasidium pullulans MTCC 1991, Aureobasidium pullulans MTCC 2670, Aureobasidium pullulans RBF 4A3, Aureobasidium pullulans ATCC 42023, Aureobasidium pullulans MTCC 6994, Aureobasidium pullulans NRRLY 6220, Aureobasidium pullulans NCIM 1049, Aureobasidium pullulans 201253, Aureobasidium pullulans CCTCCM2012259, Aureobasidium pullulans HP-2001, Aureobasidium pullulans LB83, Aureobasidium pullulans AP329
  CSDB ID 50082 (all data & tools)