Nutrition Information, Element and Antioxidant Activity of Native Plant in Chiang Rai, Thailand

The aim of this study was to investigate nutritional content, element and antioxidant activity of Caesalpinia mimosoides Lam., Clausena excavata Burm.f. and Phlogacanthus pulcherrimus T. Anderson, the local plants consumed in Chiang Rai, Thailand. The amounts of fats, proteins, carbohydrates, crude fibers and ashes ranged from 2.27-4.25, 19.65-27.86, 41.09-54.39, 9.80-16.31 and 4.27-12.69 g per 100 g dry weight, respectively. All of plants consisted of 12 minerals (N, P, K, Ca, Mg, Mn, S, B, Na, Fe, Zn and Cu). P. pulcherrimus T.Anderson provided high content of elements especially Zn, Fe, Mg and Ca. The result of antioxidant activity analysis revealed that C. mimosoides Lam. represented the highest DPPH radical scavenging activity (92.36 umol TE/g) and also presented the highest total phenolic content (221.65 mg GE/g)

Nutrition Composition and Analysis of Medicinal Herbal Potential of Horsfieldia glabra Warb. Seeds

Horsfieldia glabra Warb. is a locally consumed plant indigenous to Chiang Rai Province, Thailand and of late, there has been considerable interest in evaluating its health benefits. The aim of this study was to investigate H. glabra Warb. seeds in order to assess their nutritional properties and its potential as a medicinal herb. In terms of nutritional assessment, the experiment found that H. glabra Warb. seed extract contained 68.24 g per 100 g dry weight of lipids, 7.80 g per 100 g dry weight of protein, 14.20 g per 100 g dry weight of carbohydrates, 5.04 g per 100 g dry weight of crude fiber, 1.41 g per 100 g dry weight of ash and 6.827 kcal per 1 g dry weight of energy. The analysis of its potential as a medicinal herbal determined the antioxidant activity and Minimum Inhibitory Concentration (MIC) of Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli. The results revealed that H. glabra Warb. seed extraction displayed antioxidant activity (62.01 ± 3.99% DPPH inhibition activity) with a IC50 value of 0.358 ± 0.02 mg/ml. Experiments investigating MIC determined that the extract exhibited the minimum inhibitory concentration of S. aureus (15.625 mg/ml) with 8.00 ± 1.73 mm clear zone. Whereas Streptomycin concentration of 30 mg/ml inhibited 9.00 ± 2.00 mm clear zone. GC-MS analysis of H. glabra Warb. seeds determined that the major compounds were α-resorcinol (40.769%) and 4-vinylphenol (23.761%)

Response of Stemona alkaloid production in Stemona sp. to chitosan and yeast extract elicitors

The experiments were purposed to investigate the effect of chitosan and yeast extract on Stemona alkaloid production in Stemona sp. culture. Both elicitors enhanced Stemona alkaloid production over the control. Treatment with chitosan at a concentration of 25 mg/L for 1 week resulted in the highest production of Stemona alkaloids. It was found that 1\u27, 2\u27-didehydrostemofoline and stemofoline production was 2.65 fold and 2.95 fold higher than the control, respectively

Response of Stemona alkaloid Production in Stemona sp. to Chitosan and Yeast Extract Elicitors

Abstract: The experiments were purposed to investigate the effect of chitosan and yeast extract on Stemona alkaloid production in Stemona sp. culture. Both elicitors enhanced Stemona alkaloid production over the control. Treatment with chitosan at a concentration of 25 mg/L for 1 week resulted in the highest production of Stemona alkaloids. It was found that 1', 2'-didehydrostemofoline and stemofoline production was 2.65 fold and 2.95 fold higher than the control, respectively