The effects of ultrasound and thermal pretreatment prior to freeze drying combined with infrared on enzyme activity, color changes and antioxidant activities of dried rose flowers were studied. The activities of polyphenol oxidase (PPO) and peroxidase (POD) in rose after ultrasonic pretreatment were significantly decreased than thermal treatments. Ultrasonic pretreatment could improve the color of dried rose flowers. In addition, low-frequency ultrasound pretreatment could significantly improve the content of anthocyanins content and reduce the degradation rate. The antioxidant activity of low-frequency ultrasound pretreatment rose was also higher than that of dried rose flowers by thermal and high-frequency ultrasound pretreatment. However, thermal pretreatment as high temperatures affected the total phenolic content and product quality in different way such as loss of color and nutrients degradation.
机构:
Univ Arkansas, Dept Food Sci, Fayetteville, AR 72704 USAUniv Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
Brownmiller, C.
Howard, L. R.
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Univ Arkansas, Dept Food Sci, Fayetteville, AR 72704 USAUniv Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
Howard, L. R.
Prior, R. L.
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机构:
ARS, USDA, Little Rock, AR 72202 USA
Arkansas Childrens Nutr Ctr, Little Rock, AR 72202 USAUniv Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Cao, Xiamin
Zhang, Yan
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机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Zhang, Yan
Zhang, Fusheng
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机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Zhang, Fusheng
Wang, Yongtao
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h-index: 0
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Wang, Yongtao
Yi, Jianyong
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机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Yi, Jianyong
Liao, Xiaojun
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机构:
Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R ChinaMinist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
机构:
Univ Naples 2, Dept Life Sci, I-81100 Caserta, ItalyUniv Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
Guida, V.
Ferrari, G.
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机构:
Univ Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
Univ Salerno, ProdAl Scarl, I-84084 Fisciano, SA, ItalyUniv Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
Ferrari, G.
Pataro, G.
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h-index: 0
机构:
Univ Salerno, Dept Ind Engn, I-84084 Fisciano, SA, ItalyUniv Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
机构:
Univ Arkansas, Dept Food Sci, Fayetteville, AR 72704 USAUniv Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
Brownmiller, C.
Howard, L. R.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Arkansas, Dept Food Sci, Fayetteville, AR 72704 USAUniv Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
Howard, L. R.
Prior, R. L.
论文数: 0引用数: 0
h-index: 0
机构:
ARS, USDA, Little Rock, AR 72202 USA
Arkansas Childrens Nutr Ctr, Little Rock, AR 72202 USAUniv Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Cao, Xiamin
Zhang, Yan
论文数: 0引用数: 0
h-index: 0
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Zhang, Yan
Zhang, Fusheng
论文数: 0引用数: 0
h-index: 0
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Zhang, Fusheng
Wang, Yongtao
论文数: 0引用数: 0
h-index: 0
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Wang, Yongtao
Yi, Jianyong
论文数: 0引用数: 0
h-index: 0
机构:Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
Yi, Jianyong
Liao, Xiaojun
论文数: 0引用数: 0
h-index: 0
机构:
Minist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R ChinaMinist Educ, Engn Res Ctr Fruit & Vegetable Proc, Beijing 100083, Peoples R China
机构:
Univ Naples 2, Dept Life Sci, I-81100 Caserta, ItalyUniv Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
Guida, V.
Ferrari, G.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
Univ Salerno, ProdAl Scarl, I-84084 Fisciano, SA, ItalyUniv Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
Ferrari, G.
Pataro, G.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Salerno, Dept Ind Engn, I-84084 Fisciano, SA, ItalyUniv Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy