Enhancement of Fire Retardancy in Coir Fibers Using Phosphorylation Treatment

Ansera, Simimol; Sudhakaran, Ajith; Ravindranath, Anita Das

doi:10.1080/15440478.2021.1946888

Cited by 1 publication

(1 citation statement)

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“…Coir is a versatile lignocellulosic natural fiber [1], with lignins and hemicelluloses forming the strengthening constituents of the fiber cells. The tough fiber taken out from the husk of coconut is used to make well-designed floor endowing furnishings in coir division set up in various coconut cultivating regions of India.…”

Section: Introductionmentioning

confidence: 99%

Bioprocessing of coir fibers using microbial consortium from termite gut microbiota and Averrhoa bilimbi extracts

Rajan¹,

Sudhakaran²,

Ravindranath³

et al. 2023

J App Biol Biotech

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Coir fiber, a tough natural lignocellulosic fiber, has widespread uses but are restricted due to its high tensile strength and flexural rigidity. Bioprocessing, particularly softening and bleaching, is a common technique in the coir trade, which currently uses chemical processes that are not environmentally friendly. The current approach targets coir fiberprocessingwith Kozakonia oryzendophytica and Pseudomonas chengduensis isolated from the termite gutfor the delignification followed by the treatment with Averrhoa bilimbi extract to obtain softened and bleached coir fibers. The physical and chemical assessment of the treated fibers, including variations in lignin content, flexural rigidity to assess softness, light fastness, Fourier-Transform InfraRed, and tensile strength, was carried out. The lignin presents in the treated coir fibers dropped significantly from 46% to 31.1%. The flexural rigidity was reduced from 1.12 to 0.53 which caused the upsurge in the degree of softness. The brightness index was increased from 9.45 to 13.49. The scanning electron microscope images show that exterior protrusions on the fiber had been removed after treatment. Thus, the present investigation discovers a trajectory for a biological method of coir fiber softening.

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Section: Introductionmentioning

confidence: 99%