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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.8
- 수록면
- 878 - 883 (6page)
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In Brazil canned ‘Biuti’ peach is a very popular form of this sub-tropical fruit. This production represents an important economic agro-activity in Minas Gerais, Brazil during the summer period, in preparation for the Christmas celebrations. The aim of this work was to characterize the ‘Biuti’ peach polyphenoloxidase (PPO), since peach products show enzymatic oxidation of the polyphenols by oxidative enzymes, which affects the products during their shelf life. Two different hypothesis for the browning problem in processed peaches were studied: the inadequacy of the blanching treatment and the presence of a latent phenolase in the peaches. The PPO was characterized: pH optimum (5.5) and stability (5.5-6.5); optimum temperature at 20℃ and 80% of the activity retained after 30 min at 15-40℃. The test for the presence of latent PPO in the processed and canned peaches was negative. Ascorbic acid, ß-mercaptoethanol, sodium metabisulfite, and cysteine were efficient in inhibiting the PPO.
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowlegments
References
참고문헌 (35)
참고문헌 신청
1. [단행본] - Madail JMC / 1994 / Peach production aspects in Brazil and its relations to MERCOSUL / Embrapa: CPACT : 34 ~
2. [학술지(정기간행물)] - Antunes LEC / 1997 / The crops of peaches and plums in Minas Gerais State / Informe Agropecuario de Belorizonte (Agrobusiness report from Belo Horizonte). 189 : 14 ~ 17
3. [학술지(정기간행물)] - Brandelli A / 2005 / Polyphenol oxidase activity, browning potential, and phenolic content of peaches during postharvest ripening / J. Food Sci. 29 : 624 ~ 637
4. [학술지(정기간행물)] - Mayer AM / 1979 / Review: Polyphenol oxidases in plants / Phytochemistry 18 : 193 ~ 225
5. [학술지(정기간행물)] - Moore BM / 1990 / Sodium dodecyl sulphate activation of a plant polyphenoloxidase. Effect of sodium dodecyl sulphate on enzymatic and chemical characteristics of purified broad bean polyphenoloxidase / J. Biol. Chem. 265 : 4982 ~ 4988
2. [학술지(정기간행물)] - Antunes LEC / 1997 / The crops of peaches and plums in Minas Gerais State / Informe Agropecuario de Belorizonte (Agrobusiness report from Belo Horizonte). 189 : 14 ~ 17
3. [학술지(정기간행물)] - Brandelli A / 2005 / Polyphenol oxidase activity, browning potential, and phenolic content of peaches during postharvest ripening / J. Food Sci. 29 : 624 ~ 637
4. [학술지(정기간행물)] - Mayer AM / 1979 / Review: Polyphenol oxidases in plants / Phytochemistry 18 : 193 ~ 225
5. [학술지(정기간행물)] - Moore BM / 1990 / Sodium dodecyl sulphate activation of a plant polyphenoloxidase. Effect of sodium dodecyl sulphate on enzymatic and chemical characteristics of purified broad bean polyphenoloxidase / J. Biol. Chem. 265 : 4982 ~ 4988
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UCI(KEPA) : I410-ECN-0101-2013-573-000874643