Quality of Enzymatically Treated 72° Brix Orange Juice Stored at Refrigerated Temperatures
Identifieur interne : 001630 ( Istex/Curation ); précédent : 001629; suivant : 001631Quality of Enzymatically Treated 72° Brix Orange Juice Stored at Refrigerated Temperatures
Auteurs : P. G. Crandall [États-Unis] ; C. S. Chen [États-Unis] ; J. E. Marcy [États-Unis] ; F. G. Martin [États-Unis]Source :
- Journal of Food Science [ 0022-1147 ] ; 1986-07.
Abstract
Fresh Valencia orange juice was treated with 0, 70, and 350 ppm of commercial pectic enzymes, concentrated to 72° Brix and stored at –7°, –1°, 7°, and 13°C for up to 6 months. The 70 ppm enzyme treatment successfully reduced initial apparent viscosity by about 25%. For the 70 ppm enzyme treated samples after 6 months storage at all four temperatures, juice cloud remained acceptable, furfural remained below the significant level, and at −1°C, vitamin C levels were above 32 mg/100 mL. There was no significant difference in taste after 6 months storage at −7°C between control and 70 ppm enzyme treated samples. Product quality of enzymatically treated orange concentrate stored at refrigerated temperatures was of sufficient quality to realize potential savings of 17% in storage and 30% in refrigeration.
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DOI: 10.1111/j.1365-2621.1986.tb11222.x
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Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville, FL 32611.</mods:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Floride</region></placeName><wicri:cityArea>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville</wicri:cityArea></affiliation></author><author><name sortKey="Chen, C S" sort="Chen, C S" uniqKey="Chen C" first="C. S." last="Chen">C. S. Chen</name><affiliation wicri:level="2"><mods:affiliation>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. 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Crandall</name><affiliation wicri:level="2"><mods:affiliation>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville, FL 32611.</mods:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Floride</region></placeName><wicri:cityArea>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville</wicri:cityArea></affiliation></author><author><name sortKey="Chen, C S" sort="Chen, C S" uniqKey="Chen C" first="C. S." last="Chen">C. S. Chen</name><affiliation wicri:level="2"><mods:affiliation>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville, FL 32611.</mods:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Floride</region></placeName><wicri:cityArea>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville</wicri:cityArea></affiliation></author><author><name sortKey="Marcy, J E" sort="Marcy, J E" uniqKey="Marcy J" first="J. E." last="Marcy">J. E. Marcy</name><affiliation wicri:level="2"><mods:affiliation>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville, FL 32611.</mods:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Floride</region></placeName><wicri:cityArea>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. Author Marcy is with Rampart Packaging, inc., 400 Packets Court, Williamsburg, VA 23185. Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville</wicri:cityArea></affiliation></author><author><name sortKey="Martin, F G" sort="Martin, F G" uniqKey="Martin F" first="F. G." last="Martin">F. G. Martin</name><affiliation wicri:level="2"><mods:affiliation>Authors Crandall and Chen are with the Institute of Food and Agricultural Sciences, Univ. of Florida, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, Florida, 33850. 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Author Martin is with the Dept. of Statistics, Univ. of Florida, Gainesville</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Food Science</title><idno type="ISSN">0022-1147</idno><idno type="eISSN">1750-3841</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1986-07">1986-07</date><biblScope unit="volume">51</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="1017">1017</biblScope><biblScope unit="page" to="1020">1020</biblScope></imprint><idno type="ISSN">0022-1147</idno></series><idno type="istex">F3FD5C3CC42E5C26104AA8A416C760BE0FF17F52</idno><idno type="DOI">10.1111/j.1365-2621.1986.tb11222.x</idno><idno type="ArticleID">JFDS1017</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1147</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Fresh Valencia orange juice was treated with 0, 70, and 350 ppm of commercial pectic enzymes, concentrated to 72° Brix and stored at –7°, –1°, 7°, and 13°C for up to 6 months. The 70 ppm enzyme treatment successfully reduced initial apparent viscosity by about 25%. For the 70 ppm enzyme treated samples after 6 months storage at all four temperatures, juice cloud remained acceptable, furfural remained below the significant level, and at −1°C, vitamin C levels were above 32 mg/100 mL. There was no significant difference in taste after 6 months storage at −7°C between control and 70 ppm enzyme treated samples. Product quality of enzymatically treated orange concentrate stored at refrigerated temperatures was of sufficient quality to realize potential savings of 17% in storage and 30% in refrigeration.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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