UJI IN VITRO EKSTRAK AIR DAN ETANOL DARI BUAH ASAM GELUGUR, RIMPANG LENGKUAS, DAN KENCUR SEBAGAI INHIBITOR AKTIVITAS LIPASE PANKREAS

2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Dyah Iswantini ◽  
Latifah K. Darusman ◽  
Ana Fitriyani

Asam gelugur fruits of Garcinia often used to reduce body weight. Lengkuas and kencur are traditional herbal that potential for antiobesity because they could reduce the level of phospholipids, triglycerides, and cholesterol. The aim of the research was to evaluate the potencies of these herbal as antiobesity by measurement of their water and ethanol extracts capabilities as in vitro inhibitor of pancreatic lipase activity. The water and ethanol extracts of asam gelugur fruits contained saponins and alkaliods, respectively. The water extract of lengkuas rhizomes contained alkaloids, flavonoids, saponins, and quinones, while the ethanol extract contained alkaloids, flavonoids, saponins, and steroids. The water extract of kencur rhizomes contained saponins and quinones, while the ethanolextract contained alkaloids, flavonoids, steroids, and quinones. The highest inhibitory effect of all extracts was obtained from the ethanol extract of asam gelugur fruits with value of 86.3% at 150 ppm. The highest inhibitory effect of lengkuas extracts was from the ethanol extract at 200 ppm (56.2%). The highestinhibitory effect of kencur was showed by the ethanol extract with the value 37.6% at 300 ppm. These values were higher than the inhibitory effect of the positive control (Xenical®) at 100 ppm (10.6%).

2012 ◽  
Vol 13 (2) ◽  
pp. 146
Author(s):  
Dyah Iswantini Pradono ◽  
Latifah Kosim Darusman ◽  
Ai Susanti

Tamarind and kunci pepet has been used traditionally as herbal medicine to reduce body weight or used asantiobesity. But the mechanism in vitro of this herbal in reducing body weight has not been known yet. Theobjective of this research is to evaluate these herbal as antiobesity by their water and ethanol extracts capabilityin inhibiting pancreatic lipase activity in vitro at pH 8, incubation time 45 minutes, and temperature 400C. Pancreaticlipase used in this research was human pancreatic lipase with concentration of 1.4 × 10-5 μg/μl and the substratewas sesame oil with concentration of 16.2 μg/μl. The water and ethanol extracts of tamarind leaves containedalkaloids, flavonoids, saponins, steroids, and tannins. Water extract of kunci pepet contained alkaloids, flavonoids,saponins, and tannins, while ethanol extract contained alkaloids, flavonoids, saponins, and triterpenoids. Theresults of tamarind leaves extracts showed that ethanol extract in concentration of 150 ppm had the highestinhibitory effect, with the value of 49.0%. Water extract of kunci pepet at concentration of 200 ppm had the highestinhibition, with the value of 65.1%. These values were higher than inhibitory effect of Xenical® 100 ppm as thepositive control, with the inhibition value of 10.6%.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Gyo-Nam Kim ◽  
Mi-Rae Shin ◽  
Sung Ho Shin ◽  
Ah Reum Lee ◽  
Joo Young Lee ◽  
...  

Pancreatic lipase is the enzyme responsible for digestion and absorption of triglycerides, being its inhibition one of the widest studied methods used to determine the potential activity of natural products to inhibit dietary fat absorption. Decrease of energy intake from dietary fat through inhibition of this enzyme may be an excellent strategy to prevent and treat obesity. The inhibitory activity on pancreatic lipase enzyme ofDiospyros kakifruit andCitrus unshiupeel mixture extract (PCM) was evaluatedin vitroand its antiobesity effects were studied based on the serum lipid parameters analysis from high-fat diet- (HFD-) fed micein vivo. PCM was orally administered at a dose of 50 and 200 mg/kg body weight for 6 weeks. In addition, the activity of pancreatic lipase was assessed using orlistat (positive control). PCM exhibited inhibitory effect on lipase activity with IC50value of 507.01 μg/mL. Moreover, serum triacylglycerol, total cholesterol levels, and visceral fat weight were significantly reduced compared to HFD control mice in PCM 200 mg/kg-treated mice (p<0.05). These results suggest that PCM administration may be a novel potential antiobesity agent for reduction of fat absorption via inhibition of pancreatic lipase.


2017 ◽  
Vol 6 (2) ◽  
pp. 125
Author(s):  
Rizkayanti Rizkayanti ◽  
Anang Wahid M. Diah ◽  
Minarni Rama Jura

Moringa (moringa oleifera Lam) leaves contains many molecules as inhibitors for free radicals such as phenolic compounds (phenolic acids, flavonoids, quinones, coumarins, lignans, stilbenes, tannins), nitrogen compounds (alkaloids, amines, betalain), vitamins, terpenoids (including carotenoids), and several other endogenous metabolites as antioxidants. This study aimed to determine the antioxidant potency of water and ethanol extracts of moringa (moringa oleifera Lam) leave obtained by maceration and dekok. The concentration of free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) was analyzed using UV-Vis spectrophotometer after addition of various concentrations of Moringa leaves extracts. Various concentrations of moringa leave extracts used were 20 ppm, 40 ppm, 60 ppm and 80 ppm. Vitamin C solutions as the positive control were prepared on similar various concentrations. The negative control was prepared using DPPH solutions dissolved in absolute ethanol. The results indicated that the ethanol extract of moringa leaves prepared by maceration method showed the antioxidant potency with an IC50 value of 22.1818 ppm, but the IC50 value of water extract of moringa leaves prepared by dekok was 57.5439 ppm. While, the IC50 value of Vitamin C was 8.8084 ppm. Based on the IC50 data it can be concluded that Vitamin C is a stronger antioxidant than moringa leaves extracts.


2020 ◽  
Vol 23 ◽  
pp. 54-62
Author(s):  
O.O. Amujoyegbe ◽  
M. Idu ◽  
J.M. Agbedahunsi ◽  
G.N. Bazuaye

Sickle cell disorder is a genetic ailment with enormous social and economic burden for patients and caregivers. The most promising management apart from being expensive particularly for poor African people, faces some major incompatibility problems. The patients consequently rely on herbal therapy which could be prepared in single or combination forms to manage the painful episodes and its complications. This present study aimed to formulate polyherbal combination and evaluate three purposively selected plants previously reported for their antisickling activities. The polyherbal products were formulated using both aqueous and 70% ethanol extracts into different combinational ratio with the best in 1:1:1 and evaluated for its antisickling activity. The antisickling activity involved both the inhibitory and reversal effects at varying concentrations from 1.0 mg/ml to 6.0 mg/ml using ciklavit as the positive control. The best inhibitory activity was found in ethanol extract of Piper guineense, Gongronema latifolium and Cymbopogon citratus (PGC) with 70.09 ± 0.67% when compared with the positive control (59.25 ± 0.05%) at 4.0 mg/mg while the reversal ability was 67.87 ± 1.23%. The aqueous extracts of the combinations had activity above 50% with the exception of PGC (2:3:1) which is a little less than 50% (46.67 ± 0.98%) while the highest was 60.02 ± 0.87%. The polyherbal ethanol extract had better effects than the aqueous extract and the standard drug used in this study.


2020 ◽  
Vol 13 (8) ◽  
pp. 1549-1554
Author(s):  
Zein Ahmad Baihaqi ◽  
Irkham Widiyono ◽  
Wisnu Nurcahyo

Aim: This study was conducted to determine the anthelmintic activity of aqueous and ethanol extracts of Paraserianthes falcataria bark against Haemonchus contortus. Materials and Methods: Ethanol extract of bark (E.E.B.) waste and aqueous extract of bark (A.E.B.) waste of P. falcataria (at concentrations 0, 0.2, 0.4, 0.8, 1, 2.5, and 5%) and albendazole (2 mg/ml) as the positive control were placed in separate Petri dishes (50 mm). Twenty H. contortus worms were placed in Petri dishes and incubated at 37°C for 0.5, 1, 2, 3, 4, 5, 6, and 12 h. Mortality of each worm was ensured by pressing the body of the worm with a pair of tweezers and keeping it in lukewarm water for 5 min before declaring it dead. Mortality is defined as amount of death individuals and time of mortality of each worm was recorded. The parasites were then observed using scanning electron microscopy (SEM) at an accelerating voltage of 15 Kv. Statistical analysis was performed using SPSS 21.0 software, two-way ANOVA followed by Tukey's test to detect significant differences (p<0.05). The result was expressed as the mean ± standard deviation. Results: The E.E.B. and A.E.B. of P. falcataria contained active compounds, such as tannin, alkaloid, flavonoid, saponin, steroid, and triterpenoid. E.E.B. had a higher content of phenol, while A.E.B. had a higher content of flavonoid. In this study, P. falcataria showed a significant effect (p=0.00) on H. contortus in vitro. E.E.B. (0.8%) was able to exterminate H. contortus completely after 6 h, more effective than A.E.B. (5%) while the positive control requires (2 mg/ml) after 2 h. SEM analysis of the worm treated with E.E.B. and A.E.B. showed damaged cuticle structure. Conclusion: The aqueous and ethanol extracts of P. falcataria bark waste demonstrated anthelmintic activity against H. contortus.


Author(s):  
Dian Ratih Laksmitawati ◽  
Rininta Firdaus ◽  
Mediana Astika Zein

Objectives: This study would like to investigate the in vitro antioxidant activity through 2,2-diphenyl-1-picrylhydrazyl assay and in vitro xanthine oxidase activity of the bulbs. This study performs in vivo assays to study the antihyperuricemic activity and antioxidant in the hyperuricemic rat through plasma malondialdehyde measurement. Method: The study was conducted by testing the fresh bulbs of bawang tiwai (Eleutherine palmifolia (L.) Merr. with chemical solvent of ethanol 70% to extract the bulbs. Allopurinol and Vitamin C were used as positive control for the antihyperuricemic assay and antioxidant assay, respectively. Other chemical substances were also used in this study. This study used chicken extract (Brands) 20 ml/kg/body weight to induce the level of uric acid in the blood serum, and potassium oxonate (Sigma 156124) to inhibit the uricase in rats. Results: The results show that the levels of uric acid were measured using spectrophotometer with dichloro-hydroxybenzen sulfonate (Biolabo) a as reagent. The ethanol extract of bawang tiwai (EBT) (E. palmifolia (L.) Merr) was potential to reduce uric acid level at 140, 280, and 560 mg/kg body weight, but possibly without inhibition against xanthine oxydase activity. Conclusion: All doses of EBT could inhibit lipid peroxidation in hyperuricemic condition caused by high purine diet in 14 days.


Foods ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 47 ◽  
Author(s):  
Gyoung-Deuck Kim ◽  
Jin Lee ◽  
Joong-Hyuck Auh

The metabolomic screening of potential anti-inflammatory compounds in the leaves of Actinidia arguta was performed by using LC-MS/MS. Ethanol extracts were prepared, and the anti-inflammatory effects were investigated based on nitric oxide (NO) synthesis and inducible nitric oxide synthase expression in lipopolysaccharide-induced RAW 264.7 macrophages. The 75% ethanol extract showed the highest inhibitory effect on nitric oxide (NO) production, and it was further separated by in vitro bioassay-guided fractionation using preparative LC with reversed-phase column separation. Through multiple steps of fractionation, sub-fraction 1-3 was finally purified, and caffeic acid derivatives, such as caffeoylthreonic acid and danshensu (salvianic acid A), were successfully identified as key anti-inflammatory compounds by LC-MS/MS and metabolomics analyses. This is the first study identifying anti-inflammatory compounds in A. arguta (Actinidia arguta) leaves through bioassay-guided fractionation and metabolomics screening. Results of this study would be useful for the application of A. arguta leaves as a nutraceutical.


Sign in / Sign up

Export Citation Format

Share Document