کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5768733 1413227 2017 8 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Folate, ascorbic acid, anthocyanin and colour changes in strawberry (Fragaria × annanasa) during refrigerated storage
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Folate, ascorbic acid, anthocyanin and colour changes in strawberry (Fragaria × annanasa) during refrigerated storage
چکیده انگلیسی


- Five forms of folate and two forms of anthocyanin were detected in strawberry.
- Bioactive compounds content decreased in strawberries during refrigerated storage.
- The colour of strawberry do not change during refrigerated storage.

Colour and the composition of folate, ascorbic acid and anthocyanin of strawberry cv. Camarosa was monitored during refrigerated storage at 4 °C each day for 6 days. Folate, anthocyanin and ascorbic acid compositions were determined using High Performance Liquid Chromatography (HPLC) with UV-Vis detector. Five forms of folate: 5 methyl-tetrahydrofolate (THF) [65%], 10 formyl-folic acid (28%), 5 methylene-THF (4%), 5 formyl-THF (2%), and THF (<1%) and two forms of anthocyanins: pelargonidin 3-O-glucoside (97%) and cyanidin 3-O-rutinoside (3%) were identified in the fresh strawberries. The total folate content of the fresh strawberries determined using HPLC method was lower than that using microbiological assay. The ascorbic acid content in fresh strawberry was 57 ± 11 mg/100 g of fruit. The colour of the external skin of strawberries was measured using a Hunter colorimeter and showed fluctuation only for L* values (lightness), but a* (redness) and b* (yellowness) values remained constant during the refrigerated storage. There was no positive correlation between a* values and anthocyanin content. Strawberries should be consumed within a day or two after harvest since the reduction of these three bioactive compounds occurred even after a day of refrigerated storage.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 86, December 2017, Pages 652-659
نویسندگان
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