Chemical compositions and antioxidative and antidiabetic properties of underutilized vegetable palm hearts from Plectocomiopsis geminiflora and Eugeissona insignis.
Underutilized vegetables are currently studied not only for their nutrient values but also for their health-promoting components for protection against chronic diseases. The present study was performed to evaluate chemical compositions and antioxidant properties of underutilized vegetable palm hearts, namely, lalis (Plectocomiopsis geminiflora) and pantu (Eugeissona insignis). Additionally, the vegetable extracts were evaluated for their activities in the inhibition of digestive enzymes and effects on insulin secretion using BRIN BD11 pancreatic cell lines. Both vegetables contain valuable sources of dietary fiber, potassium, and zinc. For the first time, the phenolic compounds of the vegetables were identified and quantified using HPLC-DAD and LC-ESI-MS. Appreciable amounts of chlorogenic acid were found in the studied vegetables. The sample extracts exhibited potential antioxidant capacities through chemical and biological in vitro assays. High inhibition of α-amylase activity (>50%) was found from the extracts. Thus, it was suggested the vegetable consumption could fulfill the nutrient requirements among local communities.
Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , 43400 UPM Serdang, Selangor, Malaysia.
Zabidah
Z
Ahmad Aufa
Fouad Abdulrahman
FA
Hassan
Amin
A
Ismail
Barakatun Nisak
BN
Mohd Yusof
Muhajir
M
Hamid
D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology; D028023:Arecaceae / Q000737:chemistry*; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D006801:Humans; D007004:Hypoglycemic Agents / Q000737:chemistry* / Q000494:pharmacology; D007328:Insulin / Q000378:metabolism; D010936:Plant Extracts / Q000737:chemistry* / Q000494:pharmacology; D014675:Vegetables / Q000737:chemistry*
D000975:Antioxidants; D007004:Hypoglycemic Agents; D007328:Insulin; D010936:Plant Extracts