02271nas a2200229 4500008004100000245014400041210006900185260001900254300001400273490000700287520149200294653001801786653001701804653002401821653002601845653001801871100002901889700003501918700002201953700002701975856003902002 2019 eng d00aThe Diversity of Biologically Active Compounds in the Rhizomes of Recently Discovered Zingiberaceae Plants Native to North Eastern Thailand0 aDiversity of Biologically Active Compounds in the Rhizomes of Re cSeptember 2019 a1014-10220 v113 a

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.

10aAntiglycation10aAntioxidants10aBioactive compounds10aEssential amino acids10aGinger family1 aChumroenphat, Theeraphan1 aSomboonwatthanakul, Issaraporn1 aSaensouk, Surapon1 aSiriamornpun, Sirithon uhttps://www.phcogj.com/article/983