2008
DOI: 10.1590/s0100-40422008000800025
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Extracción y medida de peroxidasa en pulpa de arazá (Eugenia stipitata MC Vaugh)

Abstract: Recebido em 30/1/08; aceito em 20/6/08; publicado na web em 31/10/08 EXTRACTION AND ACTIVITY OF PEROXIDASE IN ARAZÁ (Eugenia stipitata Mc Vaugh) PULP FRUIT. A technique for both extraction and activity measurement of peroxidase extracted from arazá (Eugenia stipitata Mc Vaugh) is described. Peroxidase from arazá pulp fruit was extracted using a combination of protein precipitation with acetone and extraction with 50 mM sodium buffer phosphate (pH 6.0). Optimum activity using guaiacol as H-donor was obtained at… Show more

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“…The arazá fruit shows chemical characteristics, intense aroma, and a sweet-sour taste being very appreciated in agroindustrial processings, which has motivated the performance of multiple studies with the purpose of knowing its harvest physiology, ripening process, and post-harvest technologies [6,7]. Nutritional interest studies are also remarkable [4] as well as technological viability of frozen pulp [8], fruit commercialization perspectives [9][10][11], industrial potentiality [7,12], antioxidant capacity [1,13,14], antimutagenic agent [15], and antidiabetic [16]; this latter, related to the high content of compound derivatives from quercetin, which are molecules capable of inhibiting the activity of α-glucosidase, an enzyme involved in carbohydrates metabolism.…”
Section: Introductionmentioning
confidence: 99%
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“…The arazá fruit shows chemical characteristics, intense aroma, and a sweet-sour taste being very appreciated in agroindustrial processings, which has motivated the performance of multiple studies with the purpose of knowing its harvest physiology, ripening process, and post-harvest technologies [6,7]. Nutritional interest studies are also remarkable [4] as well as technological viability of frozen pulp [8], fruit commercialization perspectives [9][10][11], industrial potentiality [7,12], antioxidant capacity [1,13,14], antimutagenic agent [15], and antidiabetic [16]; this latter, related to the high content of compound derivatives from quercetin, which are molecules capable of inhibiting the activity of α-glucosidase, an enzyme involved in carbohydrates metabolism.…”
Section: Introductionmentioning
confidence: 99%
“…sororia an important source of basic material for Colombian agroindustry. However, some difficulties in fruit post-harvest handling and the lack of quality technical normativity, among others, have created obstacles in progress of production line of arazá, in comparison with other fruits related to it, such as guava (Psidium guajava) [1,10,17]. Even though most researches have been oriented to the knowledge of the pulp and/or peel [13,14,[17][18][19], leaving aside the biotechnological and/or pharmacological potentialities of the seed, which takes 30% of the fruit volume, it is 22% of fresh weight and 84% of dry matter.…”
Section: Introductionmentioning
confidence: 99%