West Sumatera is one of the largest mangosteen production centers in Indonesia.After the 2019 harvest season,there were variations in fruit production and quality which indicated symptoms of zinc(Zn)deficiency.This stu...West Sumatera is one of the largest mangosteen production centers in Indonesia.After the 2019 harvest season,there were variations in fruit production and quality which indicated symptoms of zinc(Zn)deficiency.This study evaluates the status of Zn for increasing the production and quality of mangosteen fruit Ratu Kamang cv.The study was conducting using the observation method in Lima Puluh Kota,West Sumatera from January to December 2020.This study used ten mangosteen trees aged 23 years in three locations selected purposively.Parameters observed included soil properties,leaf nutrients,number of fruits;fruit,rind,aril and seed weights,percentage of fruit scars(FS)and percentage of fruit contaminated with yellow sap(YSC).The relationship between Zn concentration in leaves and fruit production and quality was analyzed using Pearson’s correlation and regression models.The results showed that Zn played a role in increasing the production and quality of man-gosteen fruit at certain concentration ranges in the leaves.Zinc concentrations of 23.45–30.00 mg/kg play a role in increasing production,while Zn concentrations of 26.29–30.29 mg/kg play a role in increasing quality.The lowest incidence of FS and YSC was found in trees with Zn concentration in the leaves between 30.00–32.00 mg/kg.Zinc concentration in the leaves of 30.00 mg/kg was the critical concentration in increasing the production and quality of mangosteen fruit under local cultivation conditions.Zinc has an antagonistic relationship to iron(Fe)and cop-per(Cu)in leaf tissue.展开更多
OBJECTIVE This study was aimed to evaluate the effect of mangosteen peel extract(MPE)on migration of human umbilical vein endothelial cells(HUVECs)treated with LPS.METHODS Cultured HUVECs were divided into five groups...OBJECTIVE This study was aimed to evaluate the effect of mangosteen peel extract(MPE)on migration of human umbilical vein endothelial cells(HUVECs)treated with LPS.METHODS Cultured HUVECs were divided into five groups:normal(untreated)group,positive control group treated with LPS at dose of 20ng·mL-1 for 24 h,and groups pre-treated with LPS at dose of 20ng·mL-1 for 24 h followed by incubation with MPE at doses of 1,2,and 4-1μg·mL,respectively.HUVECs migration was evaluated using wound-healing migration assay after 24 h of treatment.RESULTS LPS significantly(P<0.05)impaired HUVECs migration compared to the normal.MPE at dose of 1μg·mL-1 increased migration of LPS-treated HUVECs significantly(P<0.05)compared to the positive control and near to the normal level.CONCLUSION The mangosteen peel extract is able to dose-dependently preserve the endothelial cells function.展开更多
Mangosteen peel （Garcinia mangostana L.） is well known as an excellent source of antioxidative compounds. The objective of this study was to determine the most suitable processing condition for ethanolic extraction ...Mangosteen peel （Garcinia mangostana L.） is well known as an excellent source of antioxidative compounds. The objective of this study was to determine the most suitable processing condition for ethanolic extraction of mangosteen peel. The experimental factors included raw material prepared as fresh and dried forms, material-to-solvent ratio varying at 1：3, 1：4, 1：5, 1：6, 1：9 and 1：12, and contacting time at 1, 3, 6, 9, 12 and 16 hours. Antioxidative capacity of all extracts were evaluated and compared according to DPPH radical scarvenging assay, trolox equivalent antioxidant capacity （TEAC assay） and total phenolic compounds. It was found that the extract from dried mangosteen peel had significantly stronger antioxidative capacity than that from fresh mangosteen peel （P 〈 0.05）. The suitable ethanolic extraction was found at the material-to-solvent ratio of 1：6 and 12 hours of contacting time. Mangosteen peel extracts prepared from fresh peel, dried peel, boiled and dried peel were also tested for oxidative rancidity reduction in lard at accelerated temperature of 60 ~C. The antioxidative rancidity was measured by acid value, totox value and thiobarbituric acid test. Commercial rosemary extract and BHT were compared at the equivalent concentration of 1,000 mg/kg. The results showed that the extract from dried mangosteen peel provided antioxidative capacity slightly stronger than fresh mangosteen peel extract, similar to rosemary extract but still poorer than BHT.展开更多
The effects of drying temperature and extraction methods on α-mangostin content in mangosteen pericarp （Garcinia mangostana L.） powder were investigated. In the first part of experiment suitable drying temperature ...The effects of drying temperature and extraction methods on α-mangostin content in mangosteen pericarp （Garcinia mangostana L.） powder were investigated. In the first part of experiment suitable drying temperature for retention α-mangostin content was determined. Three levels of drying temperatures （55, 65 and 75 ℃） were used in this study. The drying rates were increased with drying temperature. Room temperature extraction method was performed to investigate the effect of drying temperature on retention α-mangostin content in mangosteen pericarp. The α-mangostin content extracted at three different drying temperatures （55, 65 and 75 ℃） was 35.98 ± 0.49%, 40.32 ± 0.24%, and 37.79±0.34% w/w, respectively. The results showed that the suitable temperature for drying mangosteen pericarp was 65 ℃ that gave the highest of α-mangostin content. The second part of experiment was the comparison between extraction methods, such as shaking water bath extraction （SWE）, soxhlet extraction （SE） and microwave-assisted extraction （MAE）. The results show that MAE gave the highest extraction rate and α-mangostin content as compare to SWE and SE. The α-mangostin content extraction from SWE, SE and MAE are 45.83 ± 0.02, 34.82± 0.17 and 49.79 ± 0.15% w/w of crude extract, respectively.展开更多
基金The research funded by Indonesian Agency for Agricultural Research and Development through the Indonesian Tropical Fruit Research Institute,West Sumatera Indonesia for this work through a research project entitled Technology and Innovation for Increasing Production of Horticultural Plants,grant number SP DIPA-018.09.2.412050/2020.
文摘West Sumatera is one of the largest mangosteen production centers in Indonesia.After the 2019 harvest season,there were variations in fruit production and quality which indicated symptoms of zinc(Zn)deficiency.This study evaluates the status of Zn for increasing the production and quality of mangosteen fruit Ratu Kamang cv.The study was conducting using the observation method in Lima Puluh Kota,West Sumatera from January to December 2020.This study used ten mangosteen trees aged 23 years in three locations selected purposively.Parameters observed included soil properties,leaf nutrients,number of fruits;fruit,rind,aril and seed weights,percentage of fruit scars(FS)and percentage of fruit contaminated with yellow sap(YSC).The relationship between Zn concentration in leaves and fruit production and quality was analyzed using Pearson’s correlation and regression models.The results showed that Zn played a role in increasing the production and quality of man-gosteen fruit at certain concentration ranges in the leaves.Zinc concentrations of 23.45–30.00 mg/kg play a role in increasing production,while Zn concentrations of 26.29–30.29 mg/kg play a role in increasing quality.The lowest incidence of FS and YSC was found in trees with Zn concentration in the leaves between 30.00–32.00 mg/kg.Zinc concentration in the leaves of 30.00 mg/kg was the critical concentration in increasing the production and quality of mangosteen fruit under local cultivation conditions.Zinc has an antagonistic relationship to iron(Fe)and cop-per(Cu)in leaf tissue.
文摘OBJECTIVE This study was aimed to evaluate the effect of mangosteen peel extract(MPE)on migration of human umbilical vein endothelial cells(HUVECs)treated with LPS.METHODS Cultured HUVECs were divided into five groups:normal(untreated)group,positive control group treated with LPS at dose of 20ng·mL-1 for 24 h,and groups pre-treated with LPS at dose of 20ng·mL-1 for 24 h followed by incubation with MPE at doses of 1,2,and 4-1μg·mL,respectively.HUVECs migration was evaluated using wound-healing migration assay after 24 h of treatment.RESULTS LPS significantly(P<0.05)impaired HUVECs migration compared to the normal.MPE at dose of 1μg·mL-1 increased migration of LPS-treated HUVECs significantly(P<0.05)compared to the positive control and near to the normal level.CONCLUSION The mangosteen peel extract is able to dose-dependently preserve the endothelial cells function.
文摘Mangosteen peel （Garcinia mangostana L.） is well known as an excellent source of antioxidative compounds. The objective of this study was to determine the most suitable processing condition for ethanolic extraction of mangosteen peel. The experimental factors included raw material prepared as fresh and dried forms, material-to-solvent ratio varying at 1：3, 1：4, 1：5, 1：6, 1：9 and 1：12, and contacting time at 1, 3, 6, 9, 12 and 16 hours. Antioxidative capacity of all extracts were evaluated and compared according to DPPH radical scarvenging assay, trolox equivalent antioxidant capacity （TEAC assay） and total phenolic compounds. It was found that the extract from dried mangosteen peel had significantly stronger antioxidative capacity than that from fresh mangosteen peel （P 〈 0.05）. The suitable ethanolic extraction was found at the material-to-solvent ratio of 1：6 and 12 hours of contacting time. Mangosteen peel extracts prepared from fresh peel, dried peel, boiled and dried peel were also tested for oxidative rancidity reduction in lard at accelerated temperature of 60 ~C. The antioxidative rancidity was measured by acid value, totox value and thiobarbituric acid test. Commercial rosemary extract and BHT were compared at the equivalent concentration of 1,000 mg/kg. The results showed that the extract from dried mangosteen peel provided antioxidative capacity slightly stronger than fresh mangosteen peel extract, similar to rosemary extract but still poorer than BHT.
文摘The effects of drying temperature and extraction methods on α-mangostin content in mangosteen pericarp （Garcinia mangostana L.） powder were investigated. In the first part of experiment suitable drying temperature for retention α-mangostin content was determined. Three levels of drying temperatures （55, 65 and 75 ℃） were used in this study. The drying rates were increased with drying temperature. Room temperature extraction method was performed to investigate the effect of drying temperature on retention α-mangostin content in mangosteen pericarp. The α-mangostin content extracted at three different drying temperatures （55, 65 and 75 ℃） was 35.98 ± 0.49%, 40.32 ± 0.24%, and 37.79±0.34% w/w, respectively. The results showed that the suitable temperature for drying mangosteen pericarp was 65 ℃ that gave the highest of α-mangostin content. The second part of experiment was the comparison between extraction methods, such as shaking water bath extraction （SWE）, soxhlet extraction （SE） and microwave-assisted extraction （MAE）. The results show that MAE gave the highest extraction rate and α-mangostin content as compare to SWE and SE. The α-mangostin content extraction from SWE, SE and MAE are 45.83 ± 0.02, 34.82± 0.17 and 49.79 ± 0.15% w/w of crude extract, respectively.
