کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5136943 1494483 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Original research articleSelected nutrient analyses of fresh, fresh-stored, and frozen fruits and vegetables
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Original research articleSelected nutrient analyses of fresh, fresh-stored, and frozen fruits and vegetables
چکیده انگلیسی


- The study mimics typical consumer purchasing and storage patterns of produce.
- The study compares key nutrients in fresh, fresh-stored, and frozen produce.
- Fresh produce loses vitamins over time during refrigerated storage.
- Consumers' assumption that fresh produce has much more nutritional value than frozen is incorrect.
- In some situations, frozen produce is more nutritious than its 5-day fresh-stored counterpart.

This two-year study compared the status of targeted nutrients in selected fresh and frozen fruits and vegetables. In addition, a novel third category was examined-a “fresh-stored” categorization intended to mimic typical consumer storage patterns of produce following purchase (five days of refrigeration). Broccoli, cauliflower, corn, green beans, green peas, spinach, blueberries, and strawberries of all three categories of freshness were analyzed for their concentrations of l-ascorbic acid (vitamin C), trans-β-carotene (provitamin A), and total folate. Analyses were performed in triplicate on representative samples using standardized analytical methods and included a quality control plan for each nutrient. In the majority of comparisons between nutrients within the categories of fresh, frozen, and “fresh-stored”, the findings showed no significant differences in assessed vitamin contents. In the cases of significant differences, frozen produce outperformed “fresh-stored” more frequently than “fresh-stored” outperformed frozen. When considering the refrigerated storage to which consumers may expose their fresh produce prior to consumption, the findings of this study do not support the common belief of consumers that fresh food has significantly greater nutritional value than its frozen counterpart.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Composition and Analysis - Volume 59, June 2017, Pages 8-17
نویسندگان
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