The Diversity of Biologically Active Compounds in the Rhizomes of Recently Discovered Zingiberaceae Plants Native to North Eastern Thailand

Abstract

Objective: To identify and quantify the bioactive compounds, along with biological activities, of native Thai edible Zingiberaceae. Methods: The bioactive compounds evaluated were phenolic acids, flavonoid, vitamin C, curcumin, 6-gingerol, eugenol and essential amino acids; analyses involved HPLC and LCMS/MS. Antioxidant activities were assessed by DPPH and FRAP assays. Results: Zingiber officinale was the richest source of bioactive compounds, followed by Z. officinale, Alpinia zerumbet and Alpinia conchigera. Total phenolic content and total flavonoid contents ranged widely across these species (17 to 200 mg GAE/100 g DW and 17 to 66 mg RE/100 g DW). All the species studied possessed strong antiglycation properties, ranging from 82 to 98%, with strong positive correlations of total phenolic content and antioxidant activity. The contents of curcumin, 6-gingerol, eugenol and vitamin C were in the range of 1 to 26, 1 to 140 µg/ g DW, 5 to 1600 and 4 to 21 mg/100 g DW, respectively. Seven essential amino acids identified by using LCMS/MS were found in most samples studied ranging from 2 to 6752 µg/100 g DW. Conclusion: Z. officinale is an abundant source of bioactive compounds and antioxidant activity in all these samples. These plants are fresh sources for developing novel functional ingredients in either food or cosmetics.

Amino acids, bioactive compounds and biological activities of ten species from family Commelinaceae in Thailand

“…The extraction of phenolic contents and antioxidant activity were performed according to Chumroenphat et al (2019).…”

Chemical composition and antioxidant activity of three species of Cornukaempferia in Thailand

“…The family Zingiberaceae is used for food, spices, medicine, dyes, cosmetics, perfume, and ornamental plants, such as Alpinia galanga, Boesenbergia rotunda, Curcuma longa, Zingiber officinale, etc. (Chumroenphat et al 2019, Saensouk and. The small genus Cornukaempferia includes Cornukaempferia aurantiflora, C. chayanii, C. kamolwaniae, C. larsenii, and C. longipetiolata, belongs to the tribe Zingibereae, subfamily Zingiberoideae, family Zingiberaceae (KewScience 2021).…”

“…These plants have a wide range in all parts for use in Thailand, such as root rhizomes stem leaves and flowers. This family is used as traditional medicine, flavoring agents, spices, natural dyes have both flavorings and medicinal properties (Saensouk et al 2016;Chumroenphat et al 2019). Practically all parts of Z. officinale, A. galanga, C. longa, K. rutanda.…”

Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected by Water Extraction

“…Amino-acid analysis involved an LC–MS-MS (Shimadzu LCMS-8030) triple-quadrupole mass spectrometer, in electrospray ionization (ESI) mode, followed by analysis in a Shimadzu HPLC system (Shimadzu, Kyoto, Japan) (Chumroenphat et al [ 36 ]). HPLC analysis involved a flow rate of 0.2 mL/min; the temperature of the column oven was 38 °C and the autosampler was at 4 °C.…”