RESEARCH OF THE CONTENT OF PHENOLS, FLAVONOIDS, ANTIOXIDANT FORCE, AND ANTI-RADICAL AC-TIVITY OF SALVIA TESQUICOLA SAGE LEAVES (FAMILY CRYSTAL)
UDC 663.031
Abstract
In the course of the work, the content of phenols, flavonoids, antiradical activity and antioxidant power were studied for extracts of sage leaves of the genus Salvia tesquicola (of the Clear-colored family), obtained by traditional infusion methods and using innovative technologies – microwave radiation and ultrasonic processing. It was found that the highest content of phenols and flavonoids was observed during the treatment of aqueous extracts of sage leaves with ultrasonic radiation for 1.5 hours – 1056 mg (HA)/100 g and 346 mg (K) /100 g, respectively. The highest content of dry substances is observed when treating aqueous extracts of sage leaves with ultrasonic radiation (15.32%). Summarizing the data on the three studied parameters, the solids content, the total content of phenols and flavonoids, we can recommend the use of ultrasonic treatment as a factor that increases the content of the studied substances in extracts of sage leaves Salvia tesquicola.
The lowest antiradical activity was observed in aqueous extracts of sage leaves, obtained at 37 °C for 2 hours (3.6 mg/ml). The maximum value of antioxidant strength according to the FRAP method was revealed when obtaining aqueous extracts of sage leaves using ultrasonic radiation at 37 °C for 1.5 h – 24.30 mmol Fe2+/1 kg of the feedstock. Analysis of the data obtained from all studied parameters in the study of concentrated extracts of sage leaves, showed slight differences compared with those obtained in the study of aqueous extracts of sage leaves, namely: the content of phenols - 347 mg (HA)/100 g, the content of flavonoids – 387 mg (K)/ 100 g, contains Contents solids - 38.52%, antiradical activity - 2.4 mg /ml, the antioxidant power of FRAP method – 9.99 mmol Fe2+/1 kg of feedstock.
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