scholarly journals Anti-oxidant vitamins, phytochemicals and proximate composition of the ethanol extract of the leaves of Musa paradisiaca

2014 ◽  
Vol 8 (18) ◽  
pp. 464-468
Author(s):  
Osmund C ENECHI ◽  
Christian E ODO ◽  
Prince O AGOSI
2018 ◽  
Vol 1 (3) ◽  
pp. 014-019
Author(s):  
Ari Sri Windyaswari ◽  
Yenni Karlina ◽  
Amalia` Junita

Tanaman rosella merupakan tanaman asli dari benua Asia (India hingga Malaysia) dan benua Afrika. Kultivasi bagian bunga, daun, dan biji dari tanaman rosella (Hibiscus sabdariffa L.) telah lama digunakan oleh masyarakat sebagai bahan makanan dan pengobatan empiris. Hasil penelitian sebelumnya menunjukkan tanaman rosella memiliki aktivitas farmakologi sebagai antikanker, antibakteri dan antioksidan. Telah dilaporkan bahwa bagian daun dan akar rosella dilaporkan mengandung senyawa fenolik terbanyak dibandingkan dengan bagian lainnya. Penelitian ini bertujuan untuk mengetahui pengaruh teknik dan pelarut ekstraksi terhadap aktivitas antioksidan dari empat jenis ekstrak daun rosella (Hibiscus sabdariffa L.). Teknik ekstraksi yang dilakukan adalah maserasi, infus dan refluk menggunakan pelarut air dan pelarut etanol. Aktivitas peredaman radikal bebas DPPH teridentifikasi pada pola kromatogram lapis tipis dengan penampak bercak DPPH 0,2% dari seluruh ekstrak daun rosella. Pengujian aktivitas antioksidan menggunakan metode peredaman radikal bebas DPPH dilakukan terhadap seluruh ekstrak daun rosella, yaitu ekstrak air teknik maserasi (AM), ekstrak air teknik infus (AI), ekstrak etanol teknik maserasi (EM), serta ekstrak etanol teknik refluk (ER). Nilai IC50 ekstrak AM, AI, EM dan ER berturut-turut adalah: 0,00056 ppm (sangat kuat); 0,00057 (sangat kuat); 0,00044 ppm (sangat kuat); 0,00092 ppm (sangat kuat). Metode penyarian metabolit sekunder optimal untuk aktivitas antioksidan pada daun rosella adalah teknik ekstraksi maserasi dengan pelarut etanol (ER).   Rosella is one of a native plant from Asia (India to Malaysia) and Africa. The Flowers, leaves, and seeds cultivated from rosella (Hibiscus sabdariffa L.) have been used in folk medicine as food and empirical treatment.  The previous study reported the pharmacological activities of rosella as anti-cancer, anti-bacterial and anti-oxidant.  It has been reported that leaf and root of rosella found to have phenolic compounds as the major components. This research was conducted to evaluate the effect of extraction technique and solvent on the anti-oxidant activity of four extracts of rosella leaves (Hibiscus sabdariffa L.). The extraction techniques include maceration, infusion and reflux with water and ethanol. Scavenging activities of DPPF free radical of all rosella leaves extracts were identified by thin layer chromatography, indicated by DPPH 0,2% reagent. The evaluation of antioxidant activity using scavenging DPPH free radical method was performed to all rosella leaves extract, including water extract by maceration method (AM), water extract by infusion method (AI), ethanol extract by maceration method (EM), ethanol extract by reflux method (ER).  The IC50 values of AM, AI, EM and ER were 0,00056 ppm (very strong); 0,00057 (very strong); 0,00044 ppm (very strong); 0,00092 ppm (very strong). The most optimum method to extract secondary metabolite with anti-oxidant properties was maceration with ethanol (ER).


2020 ◽  
Vol 56 (3) ◽  
pp. 208
Author(s):  
Arista Wahyu Ningsih ◽  
Maftuchah Rochmanti ◽  
Achmad Basori

The survey results in Indonesia in 2017 showed that the diarrhea morbidity rate for all age groups was 6.897.463. In Indonesia, unripe wooden banana has been used empirically as an antidiarrheal by the people in Senduro village, Lumajang, East Java. The study aimed to prove the antidiarrheal effect of ethanol extract of unripe wooden banana (Musa paradisiaca L.) in male Balb-C/mice induced by Escherichia coli bacteria. This study was a laboratory experimental study with post-test only control group design that used 40 mice divided into 8 groups, namely 1 group without treatment (normal mice) and 7 groups induced by Escherichia coli (1 negative control group given CMC-Na, 3 groups positive controls were given Loperamid HCL 0,5 mg/kgBW, 1 mg/kgBW and 2 mg/kgBW and 3 treatment groups were given extracts 100 mg/kgBW, 200 mg/kgBW and 400 mg/kgBW). Observation of animals in this study was carried out for 4 hours. Data were analyzed of frequency of diarrhea, fecal weight and fecal consistency used Kruskal Wallis and the results showed significant differences between treatment groups (p <0.05). From the results of the Mann-Whitney test, the ethanol extract of unripe wooden banana with a dose of 100 mg/kgBW was not significantly different (p> 0.05) with the control group of Loperamid HCL dose of 0.5 mg/kgBW. Unripe wooden banana had been shown to have antidiarrheal activity at an extract dose of 100 mg/kg BW in terms of the parameters of fecal consistency, frequency of diarrhea, and fecal weight. The results showed that the higher the dose, the better antidiarrheal activity.


2019 ◽  
Vol 47 (08) ◽  
pp. 1853-1868
Author(s):  
Eunju Choi ◽  
Young-Su Yi ◽  
Jongsung Lee ◽  
Sang Hee Park ◽  
Sunggyu Kim ◽  
...  

Skin is the outer tissue layer and is a barrier protecting the body from various external stresses. The fresh water green edible algae Prasiola japonica has antiviral, antimicrobial, and anti-inflammatory properties; however, few studies of its effects on skin-protection have been reported. In this study, Prasiola japonica ethanol extract (Pj-EE) was prepared, and its skin-protective properties were investigated in skin keratinocytes. Pj-EE inhibited ROS production in UVB-irradiated HaCaT cells without cytotoxicity. Pj-EE also suppressed the apoptotic death of UVB-irradiated HaCaT cells by decreasing the generation of apoptotic bodies and the proteolytic activation of apoptosis caspase-3, -8, and -9. Moreover, Pj-EE downregulated the mRNA expression of the inflammatory gene cyclooxygenase-2 (COX-2), the pro-inflammatory cytokine genes interleukin (IL)-1[Formula: see text], IL-8, IL-6, tumor necrosis factor (TNF)-[Formula: see text], and interferon (IFN)-[Formula: see text], and the tissue remodeling genes matrix metalloproteinase (MMP)-1, -2, -3, and -9. The Pj-EE-induced anti-inflammatory effect was mediated by suppressing the activation of nuclear factor-kappa B (NF-[Formula: see text]B) signaling pathway in the UVB-irradiated HaCaT cells. Taken together, these results suggest that Pj-EE exerts skin-protective effects through anti-oxidant, anti-apoptotic, and anti-inflammatory activities in skin keratinocytes.


Author(s):  
G.SAI SRUTHI ◽  
K. SPANDANA ◽  
RAMANJANEYULU K ◽  
HIMABINDHU J

The aim of this article is to evaluate antioxidant activity of leaf extract of Magnolia champaca by using in vitro assay. Extraction was carried out with ethanol by using Soxhlet apparatus. The invitro antioxidant activity of ethanol extract has been investigated by 1, 1-diphenyl, 2-picryl–hydrazyl free radical (DPPH) method. The ethanol extract exhibited maximum antioxidant activity. The results have been compared with the standard ascorbic acid.


2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Kuswinarti Kuswinarti ◽  
Ilham Asrori Azka ◽  
Dwi Prasetyo

Background: Liver can be damaged by various factors, including the oxidative stress mechanism. This damage can be inhibited by the application of anti-oxidant. The Annona muricata L. leaf is known to have antioxidant properties. This study aimed to explore the effect of Annona muricata L. leaf extract against hepatitis in rats.Methods: An experimental study was performed on 25 male Wistar rats that were given Annona muricata L. leaf ethanol extract at 200 mg/kgBW, 400 mg/kgBW, and 600 mg/kgBW for eight days. The CCl4 was administrated on the eighth day and the rats were laparotomized on the next day. The average number of normal hepatocytes was counted in one field of view. This study was conducted at the laboratory of Pharmacology and Therapy of the Faculty of Medicine, Universitas Padjadjaran in September–October 2012.Results: The negative control group showed an intact cell membrane, homogenous cytoplasm, and round nucleus, whereas the positive control group showed necrosis marked by a ruptured cell membrane, vacuolated cytoplasm, and degenerated nucleus. The average number of normal hepatocytes counted in the negative control and the positive group was 404.91±34.09 cells and 23.16±7.84 cells, respectively. In the treatment group, the normal hepatocytes were 95.91±20.96 cells (200 mg/kgBW), 74.53±13.59 cells (400 mg/kgBW) and 46.84±8.46 cells (600 mg/kgBW). Statistically significant inhibition was observed (p<0.05).Conclusions: The Annona muricata L. leaf ethanol extract can inhibit liver tissue damages in hepatitis model rats, possibly due to the presence of acetogenins as an anti-oxidant agent.


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