Olive products, such as oils, olives and leaves infusions, have been used in the past to treat many health problems. This study aims to develop a methodology for maximizing the efficiency of extraction of polyphenols from olive leaves. For this purpose, two experimental design approaches (a central composite design (CCD) and a mixture design) have been used. The optimal extraction parameters ob...

Abstract Chestnut shell is one of the main by-products in chestnut processing, which contains abundant polyphenols, so it can be used as a source polyphenols. In this study, using ethanol extraction solvent, optimum conditions polyphenols from were determined by single factor experiment and response surface experiment: liquid-solid ratio 39:1, temperature 74°C, time 91 min, concentration 65%. U...

In this study, the use of pulsed electric field (PEF) for extraction polyphenols from mature Elaeagnus pungens ‘Limelight’ leaves is discussed. Optimization main parameters that affect process was carried out. More specifically, composition solvent (ethanol, water, and mixtures two at a 25% v/v step gradient) PEF-related (i.e., pulse duration, period, intensity) optimized. The obtained extracts...

BACKGROUND Diabetes mellitus is a chronic metabolic disorder characterized by increased blood glucose level. It has become an epidemic disease in the 21st century where, India leads the world with largest number of diabetic subjects. Non-enzymatic glycosylation (glycation) is severe form of diabetes, occurs between reducing sugar and proteins which results in the formation of advanced glycation...

The potential effects of three modern extraction technologies (cold-pressing, microwaves and subcritical fluids) on the recovery of oil from Chaenomelessinensis (Thouin) Koehne seeds have been evaluated and compared to those of conventional chemical extraction methods (Soxhlet extraction). This oil contains unsaturated fatty acids and polyphenols. Subcritical fluid extraction (SbFE) provided th...

Usually, polyphenols help address numerous health issues caused by oxidative stress. Tea is a popular beverage (rich in polyphenols) with abundant promoting and disease prevention great health-promoting disease-prevention attributes, originating from the delicate, dried leaves of Camellia sinensis plant. has been proven to have health-boosting impacts like anti-inflammatory, anti-cancerous, ant...