Biobleaching of banana fibre pulp using Bacillus subtilis C O1 xylanase produced from wheat bran under solid-state cultivation.
A cellulase-free xylanase produced by Bacillus subtilis C 01 from wheat bran under solid-state cultivation was tested for its efficacy in biobleaching of raw banana fibre and banana pulp obtained through a mechanical pulping process. Banana pulp samples treated with crude xylanase (450 nkat g(-1) pulp) resulted in a 19.6% increase in the brightness as compared to untreated pulp. The presence of chromophores, hydrophobic compounds and an increased reducing sugar (10.79 mg g(-1) pulp) quantity in the bleached solution after enzymatic treatment indicated the removal of materials that were absorbed at 237 nm from the banana pulp.
Manimaran
A
A
Shri AMM Murugappa Chettiar Research Centre, Tharamani, Chennai 600 113, India. manimaran@scientist.com
Vatsala
T M
TM
D001412:Bacillus subtilis / Q000201:enzymology*; D001426:Bacterial Proteins / Q000378:metabolism*; D002241:Carbohydrates / Q000032:analysis; D004043:Dietary Fiber / Q000382:microbiology*; D043364:Endo-1,4-beta Xylanases / Q000378:metabolism*; D005524:Food Technology / Q000379:methods; D007218:Industrial Microbiology / Q000379:methods; D028521:Musa / Q000737:chemistry / Q000378:metabolism*
D001426:Bacterial Proteins; D002241:Carbohydrates; D004043:Dietary Fiber; D043364:Endo-1,4-beta Xylanases
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