Banana Peel Extract Research Articles

A simple and efficient synthesis of substituted 2H-1-benzopyran-2-ones using natural acids and their bio evaluation

A simple and efficient route for the synthesis of coumarin derivatives (3a-3g) from reaction between substituted phenols (1a-1g) and methyl acetoacetate (2b) in presence of Citrus limon L. juice, Vitis vinifera L. juice and banana peels extract has been carried out. The homogeneity of the compounds were routinely checked by thin layer chromatography and melting points reported are uncorrected. The compounds (3a-3g) were characterized by using 1HNMR and FTIR spectral techniques and evaluated for in vitro herbicidal activity against Raphanus sativus L. (Radish seeds). The compounds (3a-3g) were also screened for their fungicidal activity against Rhizoctonia solani and Colletotrichum gloeosporioides by poisoned food techniques. Antibacterial activity was also determined against Erwinia cartovora and Xanthomonas citri by inhibition zone method. From activity data, it was found that compounds 3a and 3b were most active against Raphanus sativus L. (root) and Raphanus sativus L. (shoot) respectively. Compound 3b was found most active against R. solani fungus and Xanthomonas citri bacterium at highest concentration. Compound 3e has shown maximum percentage inhibition i.e. 83.17 against C. gloeosporioides at 2000 µg/mL concentration. Erwinia cartovora bacterium was most susceptible to compound 3 g giving 8.00 mm inhibition zone at 2000 µg/mL concentration. Less reaction time, excellent yields, simple work-up, cost effective and mild reaction conditions are some merits of present protocol.

The Effects of administration of different parts of banana (Musa cavendish) fruit extracts and peel powder on the oxidative/antioxidative characteristics and some mineral concentrations in neonatal dairy calves

The present study examined the effects of overripe banana (Musa cavendish) pulp and green banana peel extract and powder on oxidants/antioxidants parameters and some minerals in Holstein dairy calves. Forty newborn calves were randomly divided into four groups of 10 (control, group one, group two and group three). The groups were homogenous for the parity of the dams and the time of birth.Within 12-48 hours of birth, calves were assigned to their treatment groups. In the control group, animals received no banana meal. In group one, calves were supplemented with 2 g (dry matter)/kg body weight/day of overripe banana pulp extract for five days. The calves in group two were supplemented with 1 g (dry matter) of overripe banana pulp extract /kg body weight/day and 1 g (dry matter) of green banana peel extract/kg body weight/day for five days. The animals in group three were supplemented with 2 g/kg body weight/day of green banana peel powder for five days. Blood samples were taken on day 0 (at birth) and on days 7, 15 and 30 through the jugular vein. Age (the time of sampling) had a significant effect on the values of phosphorous, potassium, iron, copper, FRAP and activity of GPx enzyme (p < 0.05). Significant group and sampling time interaction was seen for the FRAP concentrations (p < 0.05). In conclusion, banana supplementation in the Holstein dairy calf’s diet at the concentration and duration that was reported in the present study had beneficial effect on the values of FRAP.

Utilization Of Agung Semeru Banana Peel Extract As Natural Hand Sanitizer

Hand sanitizers generally contain Ethyl Alcohol 62%, softener, moisturizer and anti-bacterial compounds such as tryclosan, glycerol, tannin, saponins and other antimicrobial agents. This study aimed to determine the effect of Agung Semeru banana peel extract as a natural hand sanitizer to inhibit fungal growth of Candida albicans. The antifungal activity test is carried out using the disk diffusion method. The use of this method is shown to measure the diameter of the area of ​​resistance that occurs around paper discs that already contain antifungal in accordance with the concentration in each treatment. The results showed that Agung Semeru banana peel is effective as a natural Hand sanitizer that was indicated by differences in treatment. Utilization of Agung Semeru Banana peel Extract as a natural basic material hand sanitizer showed that no significant difference between treatments in inhibiting the growth of fungi Candida albicans, but a concentration of 7% (1,315 ± 0.0035c) showed better results compared to a concentration of 1% ( 1.2 ± 0.0a); concentration of 5% (1,208 ± 0,0023b) and 0% (1.2 ± 0,0a).

PENGARUH PEMBERIAN EKSTRAK KULIT PISANG KEPOK (Musa acuminata) TERHADAP GAMBARAN HISTOPATOLOGI BRONKUS DAN VENA PULMONALIS MENCIT (Mus musculus) JANTAN YANG DIPAPAR ASAP ROKOK

This research aimed to attest the effect of Kepok banana (Musa acuminata) peel extract on the histopathology of bronchus and pulmonary veins in male mice (Mus musculus) exposed by cigarette smoke. The 24 experimental male mice were divided into six groups with each treatment having four replicate. All the groups, except K- as a control group, was treated with cigarette smoke for 14 days. After that, K- and K+ was treated with CMC-Na 1%, KO was treated with ascorbic acid 13 mg/kgBW, P1 was treated with Kepok banana peel extract 14 mg/kgBW, P2 was treated with Kepok banana peel extract 28 mg/kgBW, and P3 was treated with Kepok banana peel extract 56 mg/kgBW for 14 days. The data of the thickness of bronchial epithelium and the diameter of pulmonary veins were analyzed using ANOVA (Analysis of Varience) with significance p&lt;0,05 and continued with Post- hoc Tukey. The result of the thickness of bronchial epithelium showed that K+ had the highest thickening (431,83 + 9,71 µm) and significant differences (P&lt;0,05) with all the groups. The result of P3 showed the lowest thickening of bronchial epithelium (170,84 + 2,70 µm). The result of pulmonary veins diameter showed that K+ had the narrowest diameter (525,64 + 16,61 µm) and significant differences (p&lt;0,05) with all the groups. The result of P3 showed the lowest diameter narrowing of pulmonary veins (718,10 + 9,64 µm). The conclussion of this research are Kepok banana peel extract able to decreased the thickness of bronchial epithelium and the narrowing of pulmonary veins diameter in male mice with effective dose 28 mg/ kgBW.

PENGARUH PEMBERIAN EKSTRAK KULIT PISANG KEPOK (Musa acuminata) TERHADAP PENURUNAN KADAR MALONDIALDEHID (MDA) PARU MENCIT JANTAN (Mus musculus) YANG DIPAPAR ASAP ROKOK

This research aimed to determine the effect of kepok banana peel extract (Musa acuminata) given by per oral in decreasing levels of malondialdehyde (MDA) in lung of male mice (Mus musculus) which was exposed to cigarette smoke. The 24 experimental male mice were divided into 6 groups. The therapy was given for 14 days, all mice were sacrificed and lung MDA level were examined with thiobarbituricacid (TBA) methods. The result of the data analysis test using one-way ANOVA (Analysis of Variance) showed that there were significant differences between the group of animals that exposed to cigarette smoke ( = 840.50± 186.47 nmol / g) and the group of animals that were given with extract of kepok banana peel 56 mg / kg bw ( = 6471.25 ± 69.25 nmol/g). Besides that, there was an significant difference between the groups of animals that were exposed cigarette smoke ( = 840.50± 186.47 nmol / g) with the group of animals that were given with vitamin C 260 mg/kg bw ( = 555.25± 61.16 nmol / g). It could be concluded that extract of kepok banana peel and vitamin C could decrease MDA levels in lung of male mice which was exposed cigarette smoke. The increased therapy dose gave affect in lowering levels of malondialdehyde in lung.

Biogenic platinum from agricultural wastes extract for improved methanol oxidation reaction in direct methanol fuel cell

IntroductionPlatinum is the most commonly used catalyst in fuel cell application. However, platinum is very expensive, thus limits the commercialization of fuel cell system due to the cost factor. ObjectiveThis study introduces a biosynthesis platinum from plant extracts that can reduce the cost of platinum production compared to the conventional method and the hazardous during the production of the catalyst. The biogenic platinum was tested on a Direct Methanol Fuel Cell. Advanced biogenic of Pt nano-cluster was synthesized through a novel and facile of one-pot synthesis bio-reduction derived from natural source in the form of plant extracts as reducing agent. Several selected plant extracts drawn from agricultural waste such as banana peel, pineapple peels and sugarcane bagasse extracts were comparatively evaluated on the ability of phytochemical sources of polyphenols rich for the development of single-step synthesis for Pt NPs. ConclusionBiogenic Pt NPs from sugar cane bagasse has superior electro-catalytic activity, the enhanced utilization efficiency of Pt and appreciable stability towards methanol oxidation reaction, whose ECSA value approximates 94.58 m2g1, mass activity/specific activity (398.20 mAmg1/0.8471 mA/cm2 Pt) which greater than commercial Pt black (158.12 mAmg1/1.41 mA/cm2 Pt).

Electrochemical and Spectroscopic Properties of Green Synthesized Gold Nanoparticles Doped in Polyacrylonitrile Nanofibers

The paper provides insights on the less costly and eco-friendly green technique used for the synthesis of gold metal nanoparticle from banana (Musa paradisiaca) peel extracts. Electrospinning method was used to fabricate a stabilized nanocomposite polyacrylonitrile functionalized with green synthesized gold (PAN/Au) into nanofibers. The nanoparticle and its nanocomposite were characterized by using spectroscopy and surface morphology techniques. Surface characterization techniques like scanning electron microscopy (SEM), transmission electron microscopy (TEM), Particulate Systems Nano-Plus Zeta/Nano Particle Analyser were used to determine the shape and size of the nanoparticles. Spectroscopy characterization was done by using UV–Visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), and X-ray diffractometry (XRD), The spectroscopic studies for the gold nanoparticles were conducted at various volumes, concentrations, and synthesis time. The nanoparticle diameters were calculated to be on an average of 9 nm. Shape uniformity, stability and particle size distribution of the nanoparticles and nanocomposite were confirmed by TEM and Zeta Potential study. Furthermore, the nanocomposites of gold nanoparticles doped in polyacrylonitrile nanofibers showed improved electrochemical information as compared to the monometallic nanoparticles, unmodified PAN molecule, and the bare glassy carbon electrode. These properties exhibited by the nanocomposite PAN-Au suggests that it can be used as electrochemical sensors.

Preliminary Antidiabetic Potential of Ugandan- Matooke (Musa paradisiaca) Peels

Background: Diabetes mellitus is a metabolic disease characterized by hyperglycaemia over a prolonged period. In Uganda, unripe Musa paradisiaca (banana) is a staple food which is deskinned before cooking. In West Africa, however, the unpeeled banana is cooked for diabetics.&#x0D; Aim: The objective of the study was to assess the hypoglycemic and body weight changes in experimental diabetic Wistar rats treated with green banana peel extracts.&#x0D; Methodology: Out of the thirty-nine male rats used for the study, nine were used for the evaluation of possible oral acute toxicity. The remaining thirty were divided into six groups of 5 rats each. Experimental diabetes mellitus was induced by intravenous injection of alloxan (65 mg/kg body weight) the alloxan and treated with insulin, distilled water and graded doses of the extract (1000 mg/kg, 2000 mg/kg and 4000 mg/kg body weight) for two weeks.&#x0D; The weight and blood glucose levels were measured before and after induction and prior to administration of treatment dosages. Data were analyzed using SPSS Version 20. ANOVA and spearman’s rank correlation tests determined significant changes in values at 95% confidence interval.&#x0D; Results: The rats showed no signs of toxicity nor death even at a dose of 10,000 mg/kg body weight. Phytochemical screening revealed saponins, tannins, phenols, flavonoids, cardiac glycoside, alkaloids, steroids and terpenoids. This study demonstrates that Musa paradisiaca peels significantly attenuated blood glucose levels (P &lt; 0.005) and regulated body weights at doses (≥ 2000 mg/kg) which are essential parameters in the management of diabetes mellitus.&#x0D; Conclusion: In line with the findings, unripe banana peels are anti-diabetic; unripe bananas therefore, should be cooked with the skins to derive its established anti-diabetic benefits.

Spatial Long-Term Memory Retention by Banana and Papaya Peel Extract: In silico and in vivo Evaluation

Objectives: Alzheimer’s disease is a leading neurodegenerative disorders having serious effect on an individual’s occupational potential and quality of life. The natural and nutritional based remedy is continuing interest for neurological disorders; hence an attempt was made to reveal memory enhancing potential of commonly available fruits, by applying the molecular docking studies. Methods: The study was conducted in aluminium chloride induced Alzheimer’s Wistar albino rats for the period of 28 days. The oral administered animal groups with ethanolic extracts of peels of ripped banana and papaya (200 and 400 mg/ kg, p.o) is comparatively evaluated with positive control rats (donepezil, 1mg/kg. p.o) by behavioural studies like pole climbing test and elevated plus maze test, biochemical and histopathological parameters. Further, interaction of selected leads of banana and papaya peel with selected targets were analysed by Schrodinger Glide software. Results: Memory enhancing effects of peels was supported by shortening of transfer latency (elevated plus maze), increased number of escapes (cooks pole climbing), enhancement of brain tissue antioxidant defensive enzymes such as SOD, Catalase, GSH, reduction of activity of acetylcholine esterase and improvement of histopathological changes. Memory enhancement effect further observed by best docking score and glide energy of selected leads with targets of Alzheimer’s disease such as beta secretase and acetylcholine esterase. Conclusion: On the basis of the present study, the results revealed that peel extracts of papaya and banana and used as adjuvant which shows anti-Alzheimer’s disease.

Enhanced dielectric properties of green synthesized Nickel Sulphide (NiS) nanoparticles integrated polyvinylalcohol nanocomposites**This work was presented at the 2nd International Conference on Nanoscience and Nanotechnology (ICNAN’19)’ at VIT University, Vellore (India) from 29th Nov–1st Dec. 2019. Chairman: Prof. A. Nirmala Grace.

A green synthesis approach has been adopted to prepare nickel sulphide nanoparticles (NiS NPs) using banana peel extract (BPE) as a reducing and capping agent. Polyvinyl alcohol (PVA)/NiS nanocomposite films were fabricated using a cost-effective solution casting technique by dispersing different contents of NiS NPs (0–3 wt%) in the PVA matrix. Various characterization techniques were employed to analyze the structural, thermal and morphological properties of the PVA/NiS nanocomposite films. Further, the dielectric behaviour of these nanocomposite films was investigated at frequency range 50 Hz–20 MHz and in the temperature range 40 °C–140 °C. Also, there exists a significant interaction between the polymer matrix and the nanofiller as evident from the notable improvement in the dielectric properties of the nanocomposites. The dielectric constant (ε) value of PVA/NiS nanocomposite film with 3 wt % NiS NPs loading was found to be 154.55 at 50 Hz and at 140 °C which is 22 times greater than the dielectric constant value of neat PVA (6.90). These results suggest that NiS NPs were dispersed homogeneously in the PVA matrix.

Selenium Nanoparticles Synthesized Using Pseudomonas stutzeri (MH191156) Show Antiproliferative and Anti-angiogenic Activity Against Cervical Cancer Cells.

PurposeSelenium nanoparticles (SeNP) have several applications in the field of biotechnology, including their use as anti-cancer drugs. The purpose of the present study is to analyze the efficacy of green synthesis on the preparation of SeNP and its effect on their anti-cancer properties.MethodsA bacterial strain isolated from a freshwater source was shown to efficiently synthesize SeNP with potential therapeutic properties. The quality and stability of the NP were studied by scanning electron microscopy, X-ray diffraction, zeta-potential and FTIR analysis. A cost-effective medium formulation from biowaste having 6% banana peel extract enriched with 0.25 mM tryptophan was used to synthesize the NP. The NP after optimization was used to analyze their anti-tumor and anti-angiogenic activity. For this purpose, first, the cytotoxicity of the NP against cancer cells was analyzed by MTT assay and then chorioallantoic membrane assay was performed to assess anti-angiogenic activity. Further, cell migration assay and clonogenic inhibition assay were performed to test the anti-tumor properties of SeNP. To assess the cytotoxicity of SeNP on healthy RBC, hemolysis assay was performed.ResultsThe strain identified as Pseudomonas stutzeri (MH191156) produced phenazine carboxylic acid, which aids the conversion of Se oxyanions to reduced NP state, resulting in particles in the size range of 75 nm to 200 nm with improved stability and quality of SeNP, as observed by zeta (ξ) potential of the particles which was found to be −46.2 mV. Cytotoxicity of the SeNP was observed even at low concentrations such as 5 µg/mL against cervical cancer cell line, ie, HeLa cells. Further, neovascularization was inhibited by upto 30 % in CAMs of eggs coinoculated with SeNp when compared with untreated controls, indicating significant anti-angiogenic activity of SeNP. The NP also inhibited the invasiveness of HeLa cells as observed by decreased cell migration and clonogenic proliferation. These observations indicate significant anti-tumor and anti-angiogenic activity of the SeNP in cervical cancer cells.ConclusionP. stutzeri (MH191156) is an efficient source of Se NP production with potential anti-angiogenic and anti-tumor properties, particularly against cervical cancer cells.

Synthesis and properties of bio‐waste‐based hydroxyapatite via hydrothermal process

AbstractIn this study, a facile hydrothermal method is applied to produce hydroxyapatite (HA) particles using egg shells as calcium precursors and fruit waste extracts (banana peel) as biomolecular templates at 150 °C for a reaction time period of 12 hours (h) and 24 hours. The sintering of the green samples of hydroxyapatite were conducted at 1250 °C in air for 2 h. The results showed that pectin extracted from banana peel extracts assisted in regulating crystal growth to obtain homogeneous hydroxyapatite powder, with higher purity observed for 24 h hydrothermal reaction time. Fourier‐transform infrared spectroscopy (FTIR) spectra revealed the presences of phosphate (PO43−) and hydroxyl (OH−) groups in the powders. A relative density of 89.6 % was achieved for sintered hydroxyapatite compacts produced via hydrothermal method for 24 h. The sintered body was characterized by having high Vickers hardness of 5.35 GPa and good fracture toughness of 1.23 MPa√m, suitable for biomedical application.

Green synthesized ZnO nanosheets from banana peel extract possess anti-bacterial activity and anti-cancer activity

Recently, green synthesis of metal oxide nanoparticles has gained extensive attention because it is an environment-friendly and cost-effective approach. This study therefore focused on green synthesis of zinc oxide nanoparticles (ZnO NPs) by using waste material, banana peel crude extract, as reducing as well as capping agents in the reaction with zinc acetate. The synthesized ZnO NPs with the average electronic band gap ∼3 eV were obtained and found to have rod-like or sheet-like structures depended on concentration of crude extract used in the reaction. By performing antibacterial activity assay, these green synthesized ZnO nanosheets inhibited growth of gram-positive bacteria, Bacillus subtilis, Staphylococcus epidermidis and gram-negative bacterium, Escherichia coli. Moreover, the synthesized ZnO nanosheets demonstrated potent anti-cancer activity against cell viability of skin cancer cell (A431), colorectal cancer cell (SW620) and liver cancer cell (HepG2) without affecting normal cell line (Vero). Therefore, these studies firstly reported potential usage of the green-synthesized ZnO nanosheets for development of anti-bacterial substances or anticancer drugs. Moreover, this study showed the opportunity to increase values of agricultural waste.

Green Synthesis of ZnO Nanoparticles by Using Banana Peel Extract as Capping agent and Its Bacterial Activity

One of the nanoparticles used in the medical world is ZnO nanoparticles. The purpose of this study was to synthesize ZnO nanoparticles by using peel’s extract of kepok, ambon, and tanduk bananas (Musa paradisiaca L., Musa acuminata Cavendish Subgroup, and Musa x paradisiaca) as a capping agent. This research was conducted in four main steps, namely: extraction of three kind of bananas peel, phytochemical test on the bananas peel extract, synthesis of ZnO nanoparticles by using the extracts, characterization of ZnO nanoparticles by X-Ray Diffraction (XRD), and antibacterial activity test of ZnO nanoparticles. Based on the phytochemical test it was proven that bananas peel extract contained secondary metabolite such as flavonoids, polyphenols, alkaloids, and saponins in various concentration. The XRD analysis concluded that ZnO nanoparticles were successfully synthesized. Through the agar diffusion test, it can be showed that ZnO nanoparticles are a promising material as antibacterial agents. This statement is based on evidence that the diameter of the clear zone produced ranges from 8 to 10 nm.

Perbedaan Hasil Pencelupan Bahan Sutera Menggunakan Ekstrak Kulit Pisang Kepok dengan Mordan Tawas dan Kapur Sirih.

Abstract&#x0D; This research is motivated as an effort to reduce the problem of environmental pollution by re-using natural dyes. The natural dyes used are the utilization of waste which is kepok banana peel. The purpose of this study is to describe the name of the color (hue), dark light (value), and evenness of color as well as differences in mordan alum and whiting to the results of dyeing silk material using kapok banana peel extract (MusaParadisiaca L). This type of research is experimental research. Data collection techniques using a questionnaire (questionnaire) from 18 panelists. The data analysis technique was carried out using the Friedman K-related sample test technique and using the SPSS (Statistical Product and Service Solution) version 16.0 application. Dipping silk material with Kepok Banana peel extract (MusaParadisiaca L) without mordan yielding a Wheat Light Brown color with Code # F6E7B0 and value category very bright and evenness of color in the very flat category. In dyeing with mordan alum produces Light Brown color with code # E7BE75 with light category and flatness value in the flat category, while in dyeing with mordan whiting the color name is Golden Sundanese with code # D7A04F with the value of the category light enough and flat for the category flatness. Friedman K-related sample test results obtained for light dark color (value) is 0.001 &lt;0.05, then H0 is rejected, meaning that there are significant color differences. Whereas the color density of the data obtained was 0.154&gt; 0.05, H0 was accepted, meaning that there was no significant difference in color evenness in the dyeing of silk material using Kepok banana peel extract (MusaParadisiaca L) with mordan alum and whiting.&#x0D; Keywords: mordan alum and betel lime, kepok banana peel (Musa Paradisiaca L), silk material

Optimization on the synthesis of bacterial nano cellulose (BNC) from banana peel waste for water filter membrane applications

This research reports the optimization of the synthesis of bacterial nano cellulose (BNC) from banana peel waste media of Kepok bananas (Musa paradisiaca L.) using Gluconacetobacter xylinus bacteria in a fermentation process for use in water filter membrane applications. Bacterial nanocellulose (BNC) synthesis was successfully accomplished under conditions of pH 4, 0.5% urea, and varying sucrose contents (5%, 10% and 15% (w/v)). The higher sucrose content causes the pH of the banana peel extract solution to decrease at the end of Day 8 and 10 due to the metabolic activity of bacteria, which produces acetic acid. A bacterial growth pH range of 3.93–4.26 was obtained. The Optical Density (OD) values tend to increase with respect to fermentation time due to the growth of BNC-forming bacteria. The higher the added sucrose content, the higher the total amount of the acid obtained as the G. Xylinus bacteria produces acetic acid in its metabolic processes. BNC thickness is directly proportional to the increase in sucrose level but does not increase proportionally with the increase in sucrose levels from 5%, 10% (two times), and 15% (three times). The sucrose level at 5% (w/v) produces most optimal results. Optimal incubation time was obtained on Day 6, which had the highest rate of increase in thickness in addition to the supporting pH, OD value and total acid factors. The TEM analysis shows that the BNC surface morphology tends to be the same among all sucrose level (5%, 10% and 15% (w/v)). The difference can only be seen in the density of the nanocellulose. The nanocellulor nanofiber produced from banana peels has diameter sizes between 30–50 nm which potentially be used in water filter membrane application.

Utilization of banana ( Musa paradisiaca L.) peel as pectin source as antidiarrheal on castor oil-induced diarrheal Wistar rats model

Banana (Musa paradisiaca L.) peel, locally name pisang raja, contains a high concentration of pectin which is used as antidiarrheal to absorb irritants and increase stool consistency. However, it’s use to increase the stool consistency has not been studied, yet. The study aimed to investigate the effect banana peel extract (BPE) administration on stool consistency of diarrheal rat model. It was an experimental study with a post-test only control group design. Thirty male Wistar rats were induced diarrhea with castor oil and then randomized into five groups. Group I as positive control group was given attapulgite at dose of 124 mg/kg BW. Group II as negative control was given 0.5 mL of 1% tween 80. Group III, IV and V as treatment group were give BPE at different doses of 100, 200 and 400 mg/kg BW, respectively.T he stool consistency was measured every hour for 4 h by weighing fresh and dry stool weight and then the water content was calculated. Data analysis was conducted using one-way ANOVA and LSD post hoc test. Significantly different in stool consistency between Group III, IV, and V compared to Group II (p<0.05) and between groups Group III and IV compare to Group I (p<0.05) were observed. However, there was no significantly different between group V compared to Group I (p=0.149).In conclusion, BPE can increase the stool consistency of castor oil-induced diarrhea rats. The BPE at the dose of 400 mg/kg BW has similar effect to attapulgite.

Enzymatic Browning Modulates Properties of Silver Nanoparticles Produced with Banana Peel Extract

The present study investigated the possible influence of enzymatic browning of banana peel over the production of silver nanoparticles (AgNPs). Firstly, aqueous extracts of banana peel were prepared at different times after peeling and they were used as reducing and stabilizing agents for the production of AgNPs as monitored by visual inspection and spectrophotometry. Hydrodynamic diameters, polydispersity indexes, and Zeta potentials of the produced AgNPs were evaluated. Besides, antimicrobial activities of the AgNPs produced in the moment of peeling and after up to 2 h were assessed. As longer the period of time passed after peeling, AgNPs produced showed a tendency to decrease the size, to become with Zeta potential more negative, and to stabilize their polydispersity indexes. Antimicrobial assays showed that the two tested AgNPs were similarly effective against Escherichia coli and Staphylococcus aureus at 128 and 256 μM, respectively. This study demonstrated that banana peels extracts obtained after different times affected the production of AgNPs in different manners, producing AgNPs with distinct characteristics, such as hydrodynamic diameter, Zeta potential, and polydispersity index. Moreover, all tested AgNPs showed antimicrobial activity.

Activity Test Oinment Extract Ambon Banana Peels (Musa Paradisiaca L.) with Rabbit’s (Orycctolagus Cuniculus) Combustio (Minor Burns)

Combustio (Minor Burns) are a form of tissue damage or loss caused by contact with heat sources such as fire, hot water, chemicals, electricity and radiation. This study aims to determine the administration of Ambon banana extract to cure burns. The extract is made by meseration using 70% ethanol. This study used rabbits divided into 5 groups: positive control group (mebo ointment), negative control group which (not treated) and 3 test groups given Ambon banana peel ointment with varying concentrations (5%, 10%, and 15%) on the basis of hydrocarbon ointments. The method of making mild burns using the intervention method by administering ethan extract ointment ol the peel of Ambon banana for 15 days. Parameters observed included evaluation of ointment, identification of tannin compounds, and percentage of healing of burns. The results of the evaluation of the ointment containing the extract of ambon banana peel concentrated 5%, 10% and 15% fulfilled the requirements of the organoleptic test, homogeneity, pH, spreadability and stickiness. The results of the identification of compounds of ambon banana peel positively contain tannins characterized by the presence of a blackish green color. The results of analysts based on Friedman’s hypothesis test revealed that the value of p <0.05 then there was a difference in healing of burns in the group of time interval measurements and healing of burns. Where the healing of burns is the fastest, namely at the concentration of F3 ointment 15% with a percentage of wound healing 75% compared to positive control mebo with a healing percentage of 61.5%. It can be concluded that the Ambon banana peel extract ointment has healing activities for burns.

An overview on effects of banana peel extract on immune responses, disease resistance and growth of giant freshwater prawn, Macrobrachium rosenbergii

An overview on effects of banana peel extract on immune responses, disease resistance and growth of giant freshwater prawn, Macrobrachium rosenbergii