Results 21 to 30 of about 10,214 (167)
Effects of ultrasound on the enzymatic degradation of pectin
Ultrasonics Sonochemistry, 2021 Ultrasound-assisted enzymatic maceration (UAEM) has gained considerable interest in the fruit juice industry, owing to its potential to increase juice yield and content of polyphenols while simultaneously saving time and energy.
Lena Rebecca Larsen +4 more
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Crystal structure of plant pectin methylesterase [PDF]
FEBS Letters, 2002 Pectin is a principal component in the primary cell wall of plants. During cell development, pectin is modified by pectin methylesterases to give different properties to the cell wall. This report describes the first crystal structure of a plant pectin methylesterase. The β‐helical structure embodies a central cleft, lined by several aromatic residues,
Johansson, Kenth +5 more
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Characterization of Pectin Methylesterase from Aspergillus niger
Tikrit Journal for Agricultural Sciences, 2023 The present study was undertaken to evaluate the characteristics of pectin methylesterase produced from Aspergillus niger. The enzyme had a molecular weight of 59.668 kDa. The enzyme exhibited maximum activity at 45°C.
Oday Al-Jammaas +2 more
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Pectin methylesterase, metal ions and plant cell-wall extension. Hydrolysis of pectin by plant cell-wall pectin methylesterase [PDF]
Biochemical Journal, 1991 The hydrolysis of p-nitrophenyl acetate catalysed by pectin methylesterase is competitively inhibited by pectin and does not require metal ions to occur. The results suggest that the activastion by metal ions may be explained by assuming that they interact with the substrate rather than with the enzyme.
J, Nari, G, Noat, J, Ricard
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Pectin Methylesterase Isoforms in Tomato (Lycopersicon esculentum) Tissues (Effects of Expression of a Pectin Methylesterase Antisense Gene) [PDF]
Plant Physiology, 1994 Abstract We have identified two major groups of pectin methylesterase (PME, EC 3.1.1.11) isoforms in various tissues of tomatoes (Lycopersicon esculentum). These two groups exhibited differential immuno-cross-reactivity with polyclonal antibodies raised against tomato fruit PME or flax callus PME and differences in their accumulation ...
J., Gaffe, D. M., Tieman, A. K., Handa
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Plants, 2023 Pectin modification and degradation are vital for plant development, although the underlying mechanisms are still not well understood. Furthermore, reports on the function of pectin in early pollen development are limited.
Kazuya Hasegawa +4 more
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Effect of Natural Antimicrobial Substances with Packaging System on Improving Quality of ‘ETMANI’ Guava (Psidium guajava L.) Fruit during cold storage [PDF]
Journal of Plant Production, 2021 The effect of postharvest treatments of thyme oil and chitosan under different concentrations and combined with the packaging on weight loss%, firmness, decay index, malondialdehyde(MDA) content, total chlorophyll, hue angle (hº), ripening index ...
Hayam Elmenofy
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Pectin Methylesterase, a Regulator of Pollen Tube Growth [PDF]
Plant Physiology, 2005 Abstract The apical wall of growing pollen tubes must be strong enough to withstand the internal turgor pressure, but plastic enough to allow the incorporation of new membrane and cell wall material to support polarized tip growth. These essential rheological properties appear to be controlled by pectins, which constitute the principal ...
Maurice, Bosch +2 more
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Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization
Journal of Agriculture and Food Research, 2023 Guava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of
Aline Priscilla Gomes da Silva +6 more
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Rapid Enzymatic Method for Pectin Methyl Esters Determination
Journal of Analytical Methods in Chemistry, 2013 Pectin is a natural polysaccharide used in food and pharma industries. Pectin degree of methylation is an important parameter having significant influence on pectin applications.
Lucyna Łękawska-Andrinopoulou +4 more
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