Coffee Silverskin: Characterization, Possible Uses, and Safety Aspects

被引：93
作者：
Toschi, Tullia Gallina [1 ,2 ]
Cardenia, Vladimiro [1 ,2 ]
Bonaga, Giorgio [1 ]
Mandrioli, Mara [1 ]
Rodriguez-Estrada, Maria Teresa [1 ,2 ]
机构：
[1] Alma Mater Studiorum Univ Bologna, Dept Agr & Food Sci, Food Waste Innovat Ctr, I-40127 Bologna, Italy
[2] Alma Mater Studiorum Univ Bologna, Interdepartmental Ctr Agri Food Ind Res, I-47521 Cesena, FC, Italy
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2014年 / 62卷 / 44期
关键词：
coffee silverskin; ochratoxin A; phytostero oxidation products; lipid content safety risk; CHOLESTEROL OXIDATION-PRODUCTS; ANTIOXIDANT ACTIVITY; PHYTOSTEROL OXIDES; PHENOLIC-COMPOUNDS; CAFFEINE CONTENT; OCHRATOXIN; EXTRACTION; QUANTIFICATION; CHROMATOGRAPHY; OXYSTEROLS;
D O I：
10.1021/jf503200z
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
The reuse of coffee silverskin (CS), the main waste product of the coffee-roasting industry, could be an alternative to its environmental disposal. However, CS could also contain undesirable compounds, such as ochratoxin A (OTA) and phytosterol oxidation products (POPs). A study on the composition of CS (caffeine, moisture, dietary fibers, carbohydrates, and polyphenol contents) was carried out, with emphasis on OTA and POPs for safety reasons. The lipid fraction showed significant amounts of linoleic acid and phytosterols (7.0 and 12.1% of lipid fraction). Noticeable levels of POPs (114.11 mg/100 g CS) were found, and the phytosterol oxidation rate varied from 27.6 to 48.1%. The OTA content was 18.7-34.4 mu g/kg CS, which is about 3 times higher than the European Commission limits for coffee products. The results suggest that CS could be used as a source of cellulose and/or bioactive compounds; however, the contents of POPs and OTA might represent a risk for human safety if intended for human or livestock use.
引用
收藏
页码：10836 / 10844
页数：9
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