Fluorometric Analysis of Phenolics in Persimmons (original) (raw)

Bruised and substandard persimmons were processed to produce persimmon extracts. Optimal fluorometric conditions (wavelength of excitation, pH range, and concentration) for measurement of the content of phenolic acids were developed in this study. The main component found in persimmon extract was p-coumaric acid. Persimmons constitute one of the more important fruit crops grown in Israel. Since the fruit is delicate and is subject to bruising in shipment and handling, it is important to develop new uses for darnaged products. Flavonoids, including cQndensed tannins that are found in persimmon juice, have various biological characteristics, such as free radical scavengers,