scholarly journals Preliminary Phitochemical Analysis Of Guava Leaves (Psidium guajava L.) Extract As Antidiarrheal In Calves

Author(s):  
I Wayan Sudira ◽  
I Made Merdana ◽  
Suci Nur Qurani

Guava plants (Psidium guajava L) are fruit plants originating from South America and can thrive in the territory of Indonesia. Now the biggest center for guava cultivation is spread in DKI Jakarta, West Java, Central Java, East Java, Yogyakarta, Bali, West Nusa Tenggara, Sumatra and Kalimantan. In addition to taking the fruit, guava leaves are also used as a traditional medicine for the treatment of diarrhea in human and animals. This study aims to identify active compounds in guava leaves. That is a secondary  metabolites with pharmacological effects as anti diarrhea such as flavonoid, alkaloid, tannins and essential oils. The leaves sample used in this study were taken from farmers in the West Denpasar area, Bali. Extraction of guava leaf leaves using 96% ethanol, and phytochemical analysis was carried out to detect the presence of active compounds. The data obtained is presented and analyzed descriptively qualitatively. The results showed that the ethanol extract of guava leaves contained active compound inclaude steroid/triterpenoid, phenolics, alkaloids, flavonoids, saponins and tannins. It can be concluded that guava leaf extract contains are potential antidiarrheal

2020 ◽  
Vol 2 (1) ◽  
pp. 62-69
Author(s):  
Riyanto

Fish is kinds of food that easy to spoil. High protein content in fish makes the food is a good medium for microorganisms. People commonly buy fish for consumption, however, not all fish are consumed at the same time. Fishes were stored in freezer for several days or preserved with additional chemical preservation. The use of organic preservatives have no harm. This paper discussed guava (Psidium guajava L) leave as natural fish preservation. The objectives were to analyze the potency of the leaves as a natural preservation for mackerel fish (Rastrelliger sp.). Fime parameters used to determine the fish quality as follows : gills, eye, texture, odour and mucilage. The treatments were leaf methanolic extract with doses 0, 20, 40, 60 and 80%. Data were taken on from 1 to 5 days after storage. The results showed that (i) Fish quality was decline and start to depraved at 2 day storage, especially at control treatment (0% extract). Treatment at doses 60 and 80%, the fish quality were still relatively good over 3 days storage. Even though the fish samples have been starting spoilage, those fishes were still available to be consumed. At the same time, with the other treatment, the fish samples have been spoiled and no more available to be consumed. However, at 5th day of storage, all samples at all treatments were spoiled. Overall results, it can be concluded that extract of guava leaves can be has as fish preservativedosage


2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Irianto Girik Allo ◽  
Pemsi Mona Wowor ◽  
Henoch Awaloei

Abstract: This research aims to determine the effect of ethanol extract of guava leaves on levels of total cholesterol of rat that is induced propylthiouracil. This was an experimental research. The sample used was 15 rats were divided into 5 groups (1 group is consist of 3 rats), namely: 1) positive control, 2) extract dose of 200 mg/kgBB, 3) extract dose of 400 mg/kgBB, 4) extract dose of 800 mg/kgBB and 5) negative control. Group 1 to 4 are given propylthiouracil given for 14 days, then given treatment appropiate with the group. The result show that: 1) the average of total cholesterol levels increased after administration propylthiouracil from 156.34 mg/dL to 247.84 mg/dL, 2) at a dose of 200 mg/kgBB, 400 mg/kgBB and 800 mg/kgBB showed a decline in total cholesterol levels by 32.73%, 58.73% and 47.26%, 3) the positive control decreased total cholesterol levels by 39.46% and 4) total cholesterol levels on negative is unstable (there are up and some are down). The result of this research concluse that: guava leaf extract at dose of 200 mg/kgBB, 400 mg/kgBB and 800 mg kgBB have an effect in lowering total cholesterol of rat had been induced prophylthiouracil. Keywords: guava leaves, total cholesterol.     Abstrak: Penelitian ini bertujuan untuk mengetahui efek dari ekstrak etanol daun jambu biji terhadap kadar kolesterol total tikus wistar yang diinduksi propiltiourasil. Penelitian ini merupakan penelitian eksperimental. Sampel yang digunakan berjumlah 15 tikus wistar yang dibagi menjadi 5 kelompok (1 kelompok terdiri dari 3 tikus wistar), yaitu: 1) kontrol positif, 2) ekstrak dosis 200 mg/kgBB, 3) ekstrak dosis 400 mg/kgBB, 4) ekstrak dosis 800 mg/kgBB dan 5) kontrol negatif. Kelompok 1 sampai 4 diberikan propiltiourasil selama 14 hari, kemudian diberikan perlakuan sesuai kelompoknya. Hasil penelitian yang diperoleh: 1) rata-rata kadar kolesterol total meningkat setelah pemberian propiltiourasil yaitu dari 156,34 mg/dL menjadi 247,84 mg/dL, 2) pada dosis 200 mg/kgBB, 400 mg/kgBB dan 800 mg/kgBB menunjukkan terjadi penurunan kadar kolesterol total sebesar 32,73%, 58,73% dan 47,26%, 3) pada kontrol positif terjadi penurunan kadar kolesterol total sebesar 39,46% dan 4) kadar kolesterol total pada kelompok negatif tidak stabil (ada yang naik dan ada yang turun). Hasil penelitian ini menyimpulkan bahwa ekstrak daun jambu biji pada dosis 200 mg/kgBB, 400 mg/kgBB dan 800 mg/kgBB mempunyai efek dalam menurunkan kadar kolesterol total tikus wistar yang telah diinduksi propiltiourasil. Kata kunci: daun jambu biji, kadar kolesterol total.


2017 ◽  
Vol 6 (2) ◽  
pp. 41 ◽  
Author(s):  
Siti Nuryani

Guava (Psidium guajava Linn) is found throughout Indonesia. The leaves contain tannins that can be used as antibacterial and antifungal. The aims of this research are to determine the antiseptic power of guava leaf as antifungal and antibacterial.This research is pre experiments research with laboratory test to determine the inhibitory power of guava ethanol extract as anti-bacterial and anti-fungal. Guava leaves are old made 70% ethanol extract in LPPT UGM using maceration method. The extract made 3 concentrations ie 25%, 50% and 75%. Each concentration was tested for inhibitory by knowing the diameter of growth barrier to Candida albicans and Staphylococcus aureus. Each concentration is repeated 5 times, resulting in 15 data. The data were analyzed descriptively to illustrate their potential comparisons with chlorhexidine as standard materials. The extract of guava leaf using ethanol 70% in laboratory test resulted in average inhibitory zone diameter as follows: for mushroom C.albicans with extract 25%, 50%, and 75% were 13.4mm, 17.6mm, and 19.4mm. While for S. aureus is 2.2mm, 25.6mm, and 27.2mm. The effect of antifungal power of guava leaf extract (Psidium guajava Linn.) on the growth of Candida albicans fungus is smaller compared to Staphylococcus aureus bacteria


Author(s):  
Andre Pangestu ◽  
Khaira Nova ◽  
Dian Septinova ◽  
RR Riyanti

This study aimed to determine the effect of immersion of hybrid duck eggs using guava leaf extract at different concentrations on embryo mortality, hatchability, and saleable duck. The research was conducted in March - April 2020. Guava leaf extract was made at the Animal Production and Reproduction Laboratory, Department of Animal Husbandry, Faculty of Agriculture, University of Lampung. The dyeing and hatching treatments were carried out in Hajimena Village, Natar District, South Lampung. This study used a completely randomized design (CRD) with four treatments, namely without immersing guava leaf extract (P0), immersing with guava leaf extract concentrations of 10% (P1), 20% (P2), and 30% (P3). The results showed that the percentage of embryo mortality without dyeing and immersing guava leaf extract concentrations of 10, 20, and 30% were 40.00%, 24.00%, 16.00%, and 28.00%, respectively. Hatchability of hybrid duck eggs in the treatment without immersion and immersion in guava leaf extract concentrations of 10, 20, and 30% were 60.00, 76.00, 84.00, and 72%, respectively. Saleable duck duck eggs without immersion 93.34% and immersion in guava leaf extract with concentrations of 10, 20, and 30% respectively were 100.00%. It was concluded that immersion of hybrid duck eggs using guava leaf extract at concentrations of 10.00, 20.00, and 30.00% decreased the percentage of mortality, increased hatchability, and increased the salable duck. Keywords: Hybrid duck, Guava leaves extract, Embryonic mortality, Hatchability, Saleable duck


Author(s):  
Lounh Theo Phong ◽  
Nha Thoy Lum

The aim of this research was to evaluate the effects on the growth of Staphylococcus Aureus bacteria in vitro of antibacterial activity of guayava leaf extract (Psidium guajava L.) and guavava leaf extract impact on the growth of staphylococcus Aureus bacteria at different laboratory concentrations. In this experiment, S. Aureus bacteria are being treated to guava leaf extract to identify the lowest inhibitory power for well techniques, and the results have been recorded. The Guava leaf extract (Psidium Guajava L) against Staphylococcus aureus was found to have an inhibitory zone diameter of mm in the absence of tetracycline, and DMSO as a negative control. Findings were observed using the disk diffusion technique or paper disc with concentrations of 1 percent, 3 percent, 5 percent, and 7 percent. Saponins, saponins, alkaloids, and flavonoids found in guava leaves are responsible for their antibacterial effects. Saponins have the potential to disturb the integrity of bacterial cell membranes. This results in bacterial cell membrane destruction, releasing essential components from the cell


2021 ◽  
Vol 1 ◽  
pp. 839-849
Author(s):  
Miranda Noviani ◽  
S Slamet ◽  
W Wirasti ◽  
Urmatul Waznah

AbstractCholesterol is a natural substance that has physical properties similar to fat but has the formula steroids. Cholesterol belongs to the non-hydrolyzed lipid group and is the main sterol in body tissues. When cholesterol levels increase, it can cause blockages in blood vessels. Several studies have explained that one of the compounds that can reduce cholesterol is flavonoid compounds, one of the plants containing flavonoid compounds is guava leaf (Syzygium aqueum (Burm.f.) Alston). The purpose of this study was to determine the activity and percent reduction in cholesterol levels and the EC50 value of the ethanol extract of guava leaves (Syzygium aqueum (Burm.f.) Alston) in vitro using UV-Vis spectrophotometry with a wavelength of 665 nm. Anticholesterol activity analysis was carried out using Lieberman-Burchard reagent with a test solution series of 150; 300; 450; 600; and 750 ppm. The results showed that the greater the concentration, the lower the absorbance produced and the higher the percent reduction in cholesterol levels. At a concentration of 750 ppm cholesterol decreased by 58.74%. And the obtained EC50 value of 462 ppm, which means at that concentration the ethanol extract of guava leaves (Syzygium aqueum (Burm.f.) Alston) can reduce 50% of the initial cholesterol.Keywords:Cholesterol, Guava leaf, In Vitro, Spectrophotometry UV-Vis, Syzygium aqueum (Burm.f.)Alston. AbstrakKolesterol merupakan suatu zat alami yang memiliki sifat fisik hampir sama dengan lemak tetapi memiliki rumus steroida. Kolesterol adalah sterol utama yang ada pada jaringan tubuh dan termasuk dalam golongan lipid yang tidak terhidrolisis. Apabila kadar kolesterol mengalami kenaikan, dapat menyebabkan penyumbatan pada pembuluh darah. Dari beberapa penelitian dijelaskan bahwa salah satu senyawa yang dapat menurunkan kolesterol adalah flavonoid, salah satu tanaman yang mengandung senyawa flavonoid adalah daun jambu air (Syzygium aqueum (Burm.f.)Alston). Tujuan dari penelitian ini adalah untuk mengetahui aktivitas dan persen penurunan kadar kolesterol serta nilai EC50 dari ekstrak etanol daun jambu air (Syzygium aqueum (Burm.f.)Alston) secara in vitro menggunakan spektrofotometri UV-Vis dengan panjang gelombang 665 nm. Analisis aktivitas antikolesterol dilakukan dengan menggunakan pereaksi Lieberman-Burchard dengan seri larutan sampeli 150; 300; 450; 600; dan 750 ppm. Hasil penelitian menunjukkan semakin besar konsentrasi, absorbansi yang dihasilkan adalah semakin rendah dan persen penurunan kadar kolesterolnya semakin tinggi. Pada konsentrasi 750 ppm terjadi penurunan kolesterol sebesar 58,74%. Dan diperoleh nilai EC50 sebesar 462 ppm yang artinya pada konsentrasi tersebut ekstrak etanol daun jambu air (Syzygium aqueum (Burm.f.)Alston) dapat menurunkan 50% dari kolesterol awal.Kata kunci: Daun jambu air;Kolesterol;In Vitro;Spektrofotometri UV-Vis;Syzygium aqueum (Burm.f.)Alston


Author(s):  
Flávia A. Gonçalves ◽  
Manoel Andrade Neto ◽  
José N. S. Bezerra ◽  
Andrew Macrae ◽  
Oscarina Viana de Sousa ◽  
...  

Guava leaf tea of Psidium guajava Linnaeus is commonly used as a medicine against gastroenteritis and child diarrhea by those who cannot afford or do not have access to antibiotics. This study screened the antimicrobial effect of essential oils and methanol, hexane, ethyl acetate extracts from guava leaves. The extracts were tested against diarrhea-causing bacteria: Staphylococcus aureus, Salmonella spp. and Escherichia coli. Strains that were screened included isolates from seabob shrimp, Xiphopenaeus kroyeri (Heller) and laboratory-type strains. Of the bacteria tested, Staphylococcus aureus strains were most inhibited by the extracts. The methanol extract showed greatest bacterial inhibition. No statistically significant differences were observed between the tested extract concentrations and their effect. The essential oil extract showed inhibitory activity against S. aureus and Salmonella spp. The strains isolated from the shrimp showed some resistance to commercially available antibiotics. These data support the use of guava leaf-made medicines in diarrhea cases where access to commercial antibiotics is restricted. In conclusion, guava leaf extracts and essential oil are very active against S. aureus, thus making up important potential sources of new antimicrobial compounds.


Jurnal Kimia ◽  
2020 ◽  
pp. 119
Author(s):  
N. P. Y. A. Dewi ◽  
N. L. G. W. Pebriani ◽  
P. A. Duarsa ◽  
P. C. I. Warnaya ◽  
I. D. A. A. D. Candraningrat ◽  
...  

Guava leaves contain quercetin which can inhibit the growth of Propionibacterium acne. Thus, guava leaves have the potential to be anti-acne. Based on the benefits of guava leaves, it is necessary to formulate the ethanol extract of guava leaves in cream preparation and its characterization as well as to know the rate of releasing active substances. Preparation and standardization of guava leaf simplicia was carried out. After that, maceration, standardization and phytochemical screening of guava leaf ethanol extract were done. Positive extracts containing flavonoids were formulated into cream preparation. The concentration of stearic acid as emulgator of 14% and 18% was optimized. The formula was tested for physical and chemical properties such as organoleptic, spreadability, adhesion, viscosity and pH. The optimum formula was characterized using Franz diffusion test to determine the release of the active substance. The results showed that concentration of stearic acid as emulgator influenced the physical and chemical properties of the cream. Based on the results of this study it could be concluded that the optimum formula was stearic acid concentration of 14% with the release active substances for 3 hours of 2,5882 mg. Keywords: Guava leaves, acne, cream, stearic acid, diffusion


2016 ◽  
Vol 19 (2) ◽  
pp. 142-148
Author(s):  
Aida Fadhilla Darwis ◽  
Wilda Hafni Lubis

Minor Recurrent Athous Stomatitis (RAS), known as sore that often occurs in oral disease. That characterized by ulcers and pain symptoms for 3-10 days which disrupt the activities that prompt patients seeking medication to relieve these symptoms. RAS etiology is not known clearly, some studies associate it with free radicals. Guava leaves/ Psidium guajava L have much content of bioactive component that are efficacious as analgesic, anti-inflammatory, antimicrobial / antidiarrheal, hepatoprotective and antioxidant. The purpose of this study to determine the effectiveness of antioxidant leaves of Psidium guajava L against Minor RAS by reduction of the diameter of ulcers and pain. This clinical trial was carried out using a single-blind randomized pretest posttest control group method. That consisted of 30 participants who had minor RAS with 15 people got extract gel Psidium guajava L 3% as a treatment group and 15 others received placebo (basic gel) as a control group. Ethanol extract was obtained by maceration method and antioxidant activity test by DPPH (dipheniyl picrylhidrazil) method. This study shows the results of the ethanol extract of leaves of Psidium guajava L has a very strong antioxidant activity with IC50 value of 22.39 ppm. Gel extracts give a a meaningful effect on the healing SAR with statistically significant in the reduction of ulcers diameter p 0.007 by repeated Annova test and a reduction in pain scores p <0.001 by Friedman test. In conclusion, extract Psidium guajava Linn leaves as a high antioxidant content effective promotion the healing process by reduced diameter ulcer and pain of Minor SAR.


Author(s):  
Shweta R. Patil ◽  
Savita S. Satpute ◽  
Shitalkumar S. Patil

Couroupita guianensis Aubl is also called as “Cannon ball tree”. The tree has enormous medicinal values since most of the parts like leaves; flower, fruits and stem are used as medicine to cure various diseases. During the last few decades it has been observed that there are numerous reports on anti-inflammatory activity, antiulcer activity, anticancer activity, antioxidant activity, anthelminthic activity of this plant. It is enriched with a number of compounds such as oils, ketosteroids, glycosides, courouptine, indirubin, isatin and phenolic substances. Phytochemical analysis of the extract showed the presence of major classes of phytochemicals alkaloids, phenolic compounds such as flavonoids, tannins and saponins. Studies reveal that C. guianensis. Aubl. Is a source of medicinally active compounds and have various pharmacological effects.


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