Phytochemical and bioactivity investigation of plants of zingiberaceae

Abstract

In this thesis work, as our knowledge of the biological significance and the origins and functions of structural diversity in natural resources have grown, so too has the relevance of natural antioxidant research. The main objective of this study is to evaluate the rhizomes of twenty-two Zingiberaceae plants to see whether any active phytochemicals that can inhibit the oxidative, inflammatory, and anti-diabetic effects of the plants. Anti-oxidant effects of these extracts were examined by Reducing Power, DPPH, and ABTS assays. Certain genera, such as Alpinia, Curcuma, Etlingera, Globba, Hedychium, Kaempferia, Larsenianthus, and Zingiber, are more prevalent in Zingiberaceae plants. The ginger family is frequently used as spices and flavourings due to its unique scent [Chapter 2]. Alpinia calcarata Roscoe was the plant which shows highest potential so it is chosen for further study. Essential oils are among the most important natural products, and aromatic therapeutic herbs are also economically valuable. As a result, researchers used Alpinia calcarata in vitro techniques to look into the chemical components of the essential oil as well as its potential for antioxidant, anti-inflammatory, and antidiabetic effects [Chapter 3]. Alpinia calcarata leaf (AC-L), stem (AC-S), rhizome (AC-Rh), and root (AC-R) dried extracts were used for GC-MS analysis for chemical components, phytochemical screening, phenolic and flavonoid contents, antioxidant, antidiabetic, anti-inflammatory, and antimicrobial activity. To identify active fractions or individual bioactives, additional fractionations might be carried out. A good source of bioactive chemicals and fractions to treat diabetes and other disorders is Alpinia calcarata Roscoe. Butatanol fractions were a more potentent in the biological activities including diabetics [Chapter 4]. The primary goal of this study was to create AgNPs by utilising an aqueous extract of Alpinia calcarata leaves and rhizomes.