Microwave inactivation of thioglucosidase in intact crambe seeds

Medeiros, Henrique Rocha de; Kirleis, A. W.; Vetter, Richard J.

doi:10.1007/bf02665360

Cited by 10 publications

(4 citation statements)

References 13 publications

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“…55 Microwave inactivation does not work as well on dry materials, and an optimum moisture content of 14-16% was needed in Crambe abyssinica seed. 66 Canola seed at the lowest moisture content, 6%, required 485 s at 1500 W for deactivation. 67 Microwaving resulted in an increase in the extracted GLS content relative to the uncooked cabbage.…”

Section: Analysis 51 Stabilitymentioning

confidence: 99%

Glucosinolates, structures and analysis in food

2010

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Glucosinolates (GLS) are sulfur rich, anionic secondary metabolites found principally in the plant order Brassicales. This review focuses on identifying the range of GLS structures identified to date and summarises the current state of taxonomic reclassifications of GLS producing plants. Those Brassica species that are available to growers in the UK are highlighted and progress in the aspects of analytical chemistry relevant to conducting accurate determinations of GLS content of foods is reviewed. The degradation and derivatisation workflows that have been utilized for conducting ''glucosinolate analysis'' are summarized. A review is made of aspects of extraction, isolation, determination of purity, ultraviolet (UV) and mass spectrometry (MS) parameters, extinction coefficients, UV response factors, quantification procedures, and the availability of stable isotope labeled internal standards, and certified reference materials. An electronic database of structures, formulae and accurate masses of both the 200 known, and a further 180 predicted GLS, is provided for use in mass spectrometry.

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Section: Analysis 51 Stabilitymentioning

confidence: 99%

Glucosinolates, structures and analysis in food

2010

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“…The potential benefits (speed, process control, energy efficiency) of applying microwave technology (45)(46)(47)(48) to inactivation of TGSase in intact crambe seeds might be balanced against the added cost of water-washing to remove glucosinolates. This novel approach was demonstrated by Kirleis and coworkers (42)(43)(44) who prepared microwaved (MW), water-washed crambe meals with less than 1% total glucosinolates and 50-65% protein. Nitrogen solubility and the functional properties of these meals were not different from waterwashed meals prepared by hot water (HW) inactivation of TGSase in the whole seed (44).…”

Section: Processing With Water Extraction Of the Mealmentioning

confidence: 99%

Crambe meal as a protein source for feeds

Carlson

Tookey

1983

J Americ Oil Chem Soc

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Crambe abyssinica may be grown for its seed oil containing 55‐60% erucic acid, which fills a long‐term, technologically important US industrial market. The residual meal could serve in animal feeds, but, like other Cruciferae, crambe seed contains glucosinolates that limit the feed value of the defatted meal. Protein content, amino acid composition, protein efficiency tests and numerous animal feeding experiments show that crambe meal contains protein of good nutritional quality. Means of reducing, nullifying or removing the glucosinolates and their hydrolysis (aglucon) products have been the object of many studies, and crambe meals containing native levels of glucosinolates and/or aglucon products have been shown to be lethal to mice, rats and chicks when fed at significant dietary levels. Animal performance is inversely related to sublethal concen‐trations of these compounds in modified meals. However, water‐extracted crambe meals have excellent nutritional quality when such extraction removes the glucosinolates and/or aglucon products. Feeding experiments suggest that these meals, although more costly to prepare, could be used in feeds for nonruminant animals. On the other hand, moist heat‐toasting of crambe meals in conventional oilseed extraction facilities provides meals of value for supplemental protein in beef rations. For this use, specifications and FDA ap‐proval are in place for commercial exploitation of crambe meal. These studies and the status of crambe as a protein source in feeds are reviewed.

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“…It should be noted that the same microalgae can produce divergent lipid productivity results when using different pretreatment techniques. As such, it is better to conduct a systematic evaluation on how the pre-treatment method influences the cell wall and cell size of a specific microalgae before choosing a certain technique [39]. When comparing the production processes of pre-treated biomass with non-pre-treated biomass, the energy balance favours the former [40].…”

Section: Pre-treatmentsmentioning

confidence: 99%

“…Sustainability 2022, 14, x FOR PEER REVIEW 4 o choosing a certain technique [39]. When comparing the production processes of treated biomass with non-pre-treated biomass, the energy balance favours the former […”

Section: High-pressure Homogenisersmentioning

confidence: 99%

Sustainable Approaches to Microalgal Pre-Treatment Techniques for Biodiesel Production: A Review

2022

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Microalgae are a potential source of numerous nutritional products and biofuels. Their applications range from the food industry to the medical and fuel sectors and beyond. Recently, the conversion of biomass into biodiesel and other biofuels has received a lot of positive attention within the fossil fuel arena. The objective of biorefineries is to focus on utilising biomass efficiently to produce quality biofuel products by minimising the input as well as to reduce the use of chemical or thermal pre-treatments. Pre-treatment processes in biorefineries involve cell disruption to obtain lipids. Cell disruption is a crucial part of bioconversion, as the structure and nature of microalgae cell walls are complex. In recent years, many research papers have shown various pre-treatment methods and their advantages. The objective of this paper was to provide a comprehensive in-depth review of various recent pre-treatment techniques that have been used for microalgal biodiesel production and to discuss their advantages, disadvantages, and how they are applied in algal biorefineries.

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Microwave inactivation of thioglucosidase in intact crambe seeds

Cited by 10 publications

References 13 publications

Glucosinolates, structures and analysis in food

Glucosinolates, structures and analysis in food

Crambe meal as a protein source for feeds

Sustainable Approaches to Microalgal Pre-Treatment Techniques for Biodiesel Production: A Review

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