UHPLC-PDA-ESI-TOF/MS metabolic profiling and antioxidant capacity of arabica and robusta coffee silverskin: Antioxidants vs phytotoxins
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چکیده
منابع مشابه
High Antioxidant Activity of Coffee Silverskin
18 Coffee silverskin (CS) is a thin tegument of the outer layer of green coffee beans and a major 19 by-product of the roasting process to produce roasted coffee beans. CS extracts obtained by the 20 treatment of CS with subcritical water at 25–270 o C were investigated on their antioxidant 21 activity using hydrophilic oxygen radical absorption capacity (H-ORAC) and DPPH radical 22 scavenging ...
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An UHPLC-PDA-ESI/HRMS(n) profiling method was used to identify the glucosinolates and flavonoids of Rorippa indica (Cruciferae), a wild vegetable and Chinese herb used to treat cough, diarrhea, and rheumatoid arthritis. Thirty-three glucosinolates, more than 40 flavonol glycosides, and 18 other phenolic and common organic compounds were identified. The glucosinolates and polyphenols were separa...
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Oligomeric proanthocyanidins were successfully identified by UHPLC-PDA-HRMS(n) in a selection of plant-derived materials (jujube fruit, Fuji apple, fruit pericarps of litchi and mangosteen, dark chocolate, and grape seed and cranberry extracts). The identities of 247 proanthocyanidins were theoretically predicted by computing high-accuracy masses based on the degree of polymerization, flavan-3-...
متن کاملIdentification of nutritional descriptors of roasting intensity in beverages of Arabica and Robusta coffee beans.
Arabica and Robusta coffee beans were roasted at 220 ± 10°C for 7, 9 and 11 min to identify chemical descriptors in the beverages. The pH of the beverages showed the lowest value in the medium roasting level. In each degree of browning, the soluble solids content remained slightly higher in Arabica drinks. The contents of caffeine did not vary, but trigonelline decreased with burning up intensi...
متن کاملPersonal Exposure to Dust and Endotoxin in Robusta and Arabica Coffee Processing Factories in Tanzania
INTRODUCTION Endotoxin exposure associated with organic dust exposure has been studied in several industries. Coffee cherries that are dried directly after harvest may differ in dust and endotoxin emissions to those that are peeled and washed before drying. The aim of this study was to measure personal total dust and endotoxin levels and to evaluate their determinants of exposure in coffee proc...
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ژورنال
عنوان ژورنال: Food Research International
سال: 2017
ISSN: 0963-9969
DOI: 10.1016/j.foodres.2017.05.017