Lipases de látex vegetais: propriedades e aplicações industriais

Paques, Fernanda Wiermann; Macedo, Gabriela Alves

doi:10.1590/s0100-40422006000100018

Cited by 57 publications

(27 citation statements)

References 37 publications

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“…The kernel comprised two parts which are the embryo and the endosperm. Lipase activity is investigated during seed germination where it is maximum value [56,57]. Triacylglycerols is stored in oleosomes and comprise in range from 20 to 50% of dry.…”

Section: Hydrolysis Of Storage Seed Lipidsmentioning

confidence: 99%

Metabolic Processes During Seed Germination

Ali¹,

Elozeiri²

2017

Advances in Seed Biology

129

102

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Seed germination is crucial stage in plant development and can be considered as a determinant for plant productivity. Physiological and biochemical changes followed by morphological changes during germination are strongly related to seedling survival rate and vegetative growth which consequently affect yield and quality. This study is aimed to focus on proceeding of the most vital metabolic processes namely reserve mobilization, phytohormonal regulation, glyoxylate cycle and respiration process under either stressful or non-stressful conditions that may be led to suggest and conduct the more successful experimental improvements. Seed imbibition triggered the activation of various metabolic processes such as synthesis of hydrolytic enzymes which resulted in hydrolysis of reserve food into simple available form for embryo uptake. Abiotic stresses potentially affect seed germination and seedling establishment through various factors, such as a reduction in water availability, changes in the mobilization of stored reserves, hormonal balance alteration and affecting the structural organization of proteins. Recent strategies for improving seed quality involved classical genetic, molecular biology and invigoration treatments known as priming treatments. H 2 O 2 accumulation and associated oxidative damages together with a decline in antioxidant mechanisms can be regarded as a source of stress that may suppress germination. Seed priming was aimed primarily to control seed hydration by lowering external water potential, or shortening the hydration period.

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Section: Hydrolysis Of Storage Seed Lipidsmentioning

confidence: 99%

Metabolic Processes During Seed Germination

Ali¹,

Elozeiri²

2017

Advances in Seed Biology

129

102

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“…(Paques and Macedo, 2006) According to Villeneuve (2003), Macrae and Hammond (1985) and Sonnet (1988), lipase specificities can be divided into three main groups as follows:…”

Section: Brazilian Journal Of Chemical Engineeringmentioning

confidence: 99%

“…01, pp. 15 -29, January -March, 2010 Figure 2: Reactions catalyzed by non-specific and 1,3 specific lipases (adapted from Paques and Macedo 2006).…”

Section: Brazilian Journal Of Chemical Engineeringmentioning

confidence: 99%

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Seed lipases: sources, applications and properties - a review

Barros

Fleuri

Macêdo

2010

Braz. J. Chem. Eng.

178

100

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-This paper provides an overview regarding the main aspects of seed lipases, such as the reactions catalyzed, physiological functions, specificities, sources and applications. Lipases are ubiquitous in nature and are produced by several plants, animals and microorganisms. These enzymes exhibit several very interesting features, such as low cost and easy purification, which make their commercial exploitation as industrial enzymes a potentially attractive alternative. The applications of lipases in food, detergents, oils and fats, medicines and fine chemistry, effluent treatment, biodiesel production and in the cellulose pulp industry, as well as the main sources of oilseed and cereal seed lipases, are reviewed.

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“…Contudo, o seu uso é caracterizado pelos elevados custos de produção [6]. Esse fato faz com que a procura por meios menos custosos para a sua produção sejam pesquisados, bem como o uso de variados micro-organismos produtores; diferentes maneiras de conduzir o processo e diferentes meio de cultura dos micro-organismos.…”

Section: V De Jesus Et Al Scientia Plena 12 054208 (2016)unclassified

Produção de lipase utilizando manipueira como fonte alternativa de carbono

et al. 2016

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As lipases são enzimas capazes de realizar a hidrólise de ácidos graxos, reação que é muito importante nas indústrias e mais especificamente para a produção de biodiesel. Pode ser produzida por animais, vegetais e micróbios, sendo a última forma a mais vantajosa. A sua produção em laboratório tem sido muito repetida e mostra resultados muito satisfatórios. Uma infinidade de maneiras de cultivo desta enzima é desenvolvida, variando os tipos de micro-organismos produtores, tipos de substrato, e processos de fermentação. Dentre as bactérias capazes de produzir lipase, o Bacillus subtilis se destaca notadamente nas pesquisas publicadas por se desenvolver e produzir a enzima em condições adversas. Muito frequentemente, resíduos da indústria agrícola são utilizados como meio de cultura desses micróbios, seja para baixar os custos de produção, seja para dar utilidade a tais rejeitos. Neste trabalho, a manipueira, resíduo líquido do processamento da mandioca, foi utilizada como fonte alternativa de carbono para a produção da lipase e seus resultados comparados com diferentes meios de fermentação sendo comprovada a sua eficiência na produção da enzima.

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Lipases de látex vegetais: propriedades e aplicações industriais

Cited by 57 publications

References 37 publications

Metabolic Processes During Seed Germination

Metabolic Processes During Seed Germination

Seed lipases: sources, applications and properties - a review

Produção de lipase utilizando manipueira como fonte alternativa de carbono

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