Optimization of enzymatic hydrolysis of waste cotton fibers for nanoparticles production using response surface methodology

Meyabadi, Tayebeh Fattahi; Dadashian, Fatemeh

doi:10.1007/s12221-012-0313-7

Cited by 49 publications

(22 citation statements)

References 27 publications

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“…It is also considered environmentally friendly as no solvents or chemical reagents are used in the process. 95 Enzymes are excellent peeling agents and are used extensively in the food industry for peeling purposes. 96 The method has also been employed in the processing of pepper berries to replace the conventional practices.…”

Section: Enzymatic Peeling Methodsmentioning

confidence: 99%

“…Due to its effectiveness, it has a high potential for the application and processing in various industries such as biomedical, pharmaceuticals, chemical, biofuels, food and beverages. It is also considered environmentally friendly as no solvents or chemical reagents are used in the process . Enzymes are excellent peeling agents and are used extensively in the food industry for peeling purposes .…”

Section: Biotechnology Approach In Production Of White Peppermentioning

confidence: 99%

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A review on conventional and biotechnological approaches in white pepper production

et al. 2019

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White pepper is the dried seeds obtained from pepper berries (Piper nigrum L.) after the removal of the pericarp. It has been widely used as seasoning and condiments in food preparation. Globally, white pepper fetches a higher price compared to black pepper due to its lighter colour, preferable milder flavour and pungency. Increasing global demand of the spice outpaced the supply as the conventional production method used is laborious, lengthy and also not very hygienic. The most common conventional method is water retting but can also include pit soil, chemical, boiling, steaming and mechanical methods. The introduction of a biotechnological approach has gained a lot of interest, as it is a more rapid, convenient and hygienic method of producing white pepper. This technique involves the application of microorganisms and/or enzymes. This review highlights both conventional and latest biotechnological processes of white pepper production. © 2018 Society of Chemical Industry

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Section: Enzymatic Peeling Methodsmentioning

confidence: 99%

Section: Biotechnology Approach In Production Of White Peppermentioning

confidence: 99%

A review on conventional and biotechnological approaches in white pepper production

et al. 2019

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“…Em geral, os fatores que vão interferir na hidrólise enzimática são: natureza da fibra, quantidade de componentes químicos da fibra; conteúdo de lignina e estado da superfície das fibras [19,21]. Assim, essa afirmação se aplica a polpa marrom, pois a mesma, não passou por uma etapa de branqueamento, onde a composição química permanece rica, onde há maior quantidade de lignina presente na polpa, assim como os demais componentes, celulose, hemicelulose e extrativos [23].…”

Section: Rendimento De Nanofibrilas De Celulose (Nfc)unclassified

Produção de suspensões nanofibrilares de celulose vegetal por meio de processo combinado – Avaliação do gasto energético

Ribes¹,

Zanatta²,

Gatto³

et al. 2018

Matéria (Rio J.)

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RESUMO O presente estudo tem por objetivo produzir nanofibrilas de celulose vegetal com polpa Kraft marrom e branqueada por meio de um pré-tratamento enzimático e posteriormente um mecânico, denominado assim como processo combinado, com o intuito de diminuição de gasto energético. Para isso, as amostras de polpas de celulose foram previamente desestruturadas e encharcadas em água destilada com concentração de 3% de sólidos, afim de homogeneizá-las. Na hidrólise enzimática utilizou-se a enzima comercial Cellic CTec2, em porcentagens que variaram de 0,01 a 0,1% por diferentes períodos (1 e 2 horas). Após o tempo de hidrólise, a polpa foi passada em um moinho de discos, onde nesse processo ocorreu a medida do consumo do gasto energético com auxílio de um medidor de energia. Para a produção do gel, as polpas foram processadas pelo moinho de disco em ciclos de passagens. Para a inibição enzimática o conteúdo foi aquecido à 85°C. Os géis foram armazenados em resfriamento de 5°C. O processo foi caracterizado pelo gasto energético medido a cada amostra, além de ser medido o rendimento de cada gel produzido. De acordo com os resultados o processo combinado, apresentou-se viável para a produção de nanofibrilas de celulose vegetal, pois este diminui o gasto energético comparado com o processo mecânico e com a menor carga enzimática (0,01%). A polpa marrom mesmo sem ter passado por processos de deslignificação mostrou-se promissora na produção das nanofibrilas de celulose vegetal.

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“…In present study, the cellulase enzyme assisted hydrolysis was chosen to maintain extensively entangled networks, higher strength and higher aspect ratio of the cellulose elementary crystals for reinforcement in composite applications. Cellulases are a group of multicomponent enzyme systems produced by microorganisms that help in the degradation of cellulose . The filamentous fungus Trichoderma reesei (anamorph of Hypocrea jecorina ) is one of the most efficient producers of extra cellular cellulase enzyme.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of enzyme hydrolyzed longer jute microcrystals in polylactic acid

et al. 2016

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The waste jute fibers generated in textile industries were hydrolyzed to the form of longer jute microcrystals of size 5423, 3789, and 2,035 nm diameter after 4, 6, and 8 days of cellulase enzyme treatment. The obtained crystals were incorporated into poly(lactic acid) matrix at 1, 5, and 10 wt% loading to prepare composite films by solvent casting. The reinforcement potentials of microcrystals were investigated from the improvements in mechanical properties based on tensile tests, dynamic mechanical analysis, and differential scanning calorimetry. The maximum improvement was observed in case of 1 wt% composite film where tensile strength increased by 39.72% and crystallinity increased by 57.43% over neat PLA film. From storage modulus results, the improvement in load bearing capacity of composite films was found negative at 60°C than 35°C, which showed failure of jute microcrystals to improve the softening temperature of PLA matrix. At the end, when experimental results of initial modulus were compared with predicted values obtained from different mechanical models, a good level of agreement was found at 1 wt% loading of JMC. POLYM. COMPOS., 39:1089–1097, 2018. © 2016 Society of Plastics Engineers

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Optimization of enzymatic hydrolysis of waste cotton fibers for nanoparticles production using response surface methodology

Cited by 49 publications

References 27 publications

A review on conventional and biotechnological approaches in white pepper production

A review on conventional and biotechnological approaches in white pepper production

Produção de suspensões nanofibrilares de celulose vegetal por meio de processo combinado – Avaliação do gasto energético

Reinforcement of enzyme hydrolyzed longer jute microcrystals in polylactic acid

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