Taxonomy, phytochemical and bioactive compounds and potential use as material with different drying methods of Alpinia latilabris Ridl. new record from Thailand

Abstract

Alpinia latilabris Ridl., a new record from Thailand, has great potential for use as a material for food and traditional medicine. Dried samples preserve the quality and avoid the degradation of phytochemicals. The aim here was to determine the taxonomy and changes in the phytochemical and bioactive compounds when using different drying methods as well as the antioxidant properties in this first report for this species. The results show that freeze-dried samples had greater quality volatile compounds, bioactive compounds, organic acid, phenolic acid, flavonoids and antioxidants compared with a fresh sample while having a microstructure similar to that of the fresh sample. The major volatile compounds were 1,8-cineole in fresh and dried samples, as confirmed by FTIR spectra. The bioactive chemicals are sensitive to thermal drying and sunlight due to degradation of the phytochemicals. This result can be useful information and be applied to the preparation of material for further development of functional foods, medicinal plants or cosmetics.

Comparative Phytochemical Profiling (GC-MS and HPLC) and Evaluation of Antioxidant Activities of Wild, in Vitro Cultured and Greenhouse Plants of Kaempferia grandifolia Saensouk and Jenjitt and Kaempferia siamensis Sirirugsa; Rare Plant Species in Thailand

“…Leaves and rhizomes were obtained from three types of plants: wild, in vitro cultured, and greenhouse plants. Plant parts were dried in a hot air oven at 60°C for 24 hour 7 and then ground to a fine powder. Five grams of plant parts in powder form were extracted by a soxhlet extraction apparatus with 95% ethanol for 4 hour.…”

Cytogenetic study in seven species of Zingiberaceae family from Bueng Kan Province, Thailand

“…This family is unique in that every part of the plant smells of essential oils (Phokham et al 2013;Ragsasilp et al 2022). The ginger family has been used for many purposes, especially in food, ingredient, beverage, medicinal plants, ornamental plants, cosmetics, dyes, ritual plants, and economic plants, which was reported by several botanists- Khumkratok et al (2012), Leong-Škorničková et al (2015Leong-Škorničková et al ( , 2020, Wongsuwana et al (2015), , Boonma et al (2020), Jenjittikul and Ruchisansakun (2020), Soonthornkalump et al (2020), , , Ragsasilp et al (2022), Chumroenphat and Saensouk (2022), Bueng Kan Province is located along the Mekong river in northeastern Thailand and has many forests, rich streams, beautiful natural scenery, and a variety of higher plants, especially the family Zingiberaceae. This province has found five ecosystem forest types, i.e.…”

A New Subspecies and Two New Records of the Genus Alpinia from Lao PDR

“…genus, belonging to the Alpinieae tribe, Alpinioideae subfamily, and Zingiberaceae family, is the largest genus with over 250 species. 1,12,13,14,15,16,17 Alpinia species have been extensively utilized throughout history for many purposes such as food, ornamentation, medicine, ritual purposes and cosmetics. 18 A total of 13 species of the Alpinia have been documented from "A Checklist of Vascular Plants of Lao PDR" 16,19 and "A Checklist of Plants in Lao PDR".…”