scholarly journals Comparative Study on the Extraction of Bioactive Compound from Banana and Pineapple Peel Extract

2018 ◽  
Keyword(s):  
Comparative Study ◽  
Bioactive Compound ◽  
Pineapple Peel ◽  
Peel Extract

scholarly journals Alcoholic lung injury: pineapple peel extract modulates antioxidant enzymes and attenuates lipid peroxidation in rat models

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Ochuko L. Erukainure ◽  
John A. Ajiboye ◽  
Oluwatoyin Y. Okafor ◽  
Emeka E. Okoro ◽  
Godfrey Asieba ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Lung Injury ◽  
Rat Models ◽  
Pineapple Peel ◽  
Peel Extract

scholarly journals Antibacterial activity of mixed pineapple peel (Ananas comosus) extract and calcium hydroxide paste against Enterococcus faecalis

2018 ◽  
Vol 51 (1) ◽  
pp. 20
Author(s):  
Intan Fajrin Arsyada ◽  
Devi Rianti ◽  
Elly Munadziroh
Keyword(s):  
Antibacterial Activity ◽  
Calcium Hydroxide ◽  
Enterococcus Faecalis ◽  
Root Canal ◽  
Antibacterial Properties ◽  
Root Canal Treatment ◽  
Ananas Comosus ◽  
Treatment Groups ◽  
Pineapple Peel ◽  
Peel Extract

Background: Enterococcus faecalis (E. faecalis) is the bacteria most commonly resulting from failed root canal treatment. Intracanal medicament is used to enhance the success of root canal treatment. A material widely used for this purpose is calcium hydroxide. However, its ineffectiveness in eliminating E. faecalis requires the addition of other antibacterial substances, such as iodoform which has the disadvantage of having toxic effects on tissues. Pineapple peel has antibacterial properties because it contains chemical compounds, such as flavonoid, saponin, tannin, as well as the enzyme bromelain. Purpose: The aim of the study was to determine the antibacterial activity of a mixture of pineapple peel extract at 6.25% and 12.5% concentrations and calcium hydroxide paste at a ratio of 1:1 compared to100% calcium hydroxide and a mixture of calcium hydroxide and iodoform paste against E. faecalis. Methods: The research was laboratory-based experiment in nature. Sample groups were divided into two control groups (one featuring100% calcium hydroxide paste and a second featuring a mixture of calcium hydroxide and iodoform paste) and two treatment groups (mixture of pineapple peel extract and calcium hydroxide paste in 6.25% and 12.5% concentrations with ratio 1:1). The method was using agar diffusion. The result data were analyzed by One Way Anova test. Results: The highest average of the inhibitory zone occurred in group with a mixture of pineapple peel extract 12.5% and calcium hydroxide paste while the smallest average was that of group with a mixture of calcium hydroxide and iodoform paste. Conclusion: Mixture of pineapple peel extract in 6.25% and 12.5% concentrations and calcium hydroxide paste ratio 1:1 has higher antibacterial activity than paste of 100% calcium hydroxide and mixture of calcium hydroxide and iodoform paste againts E. faecalis.

scholarly journals Effect of peroxide treatment on the structure and transparency of bacterial cellulose film

2018 ◽  
Vol 204 ◽  
pp. 05015 ◽  
Author(s):  
Heru Suryanto ◽  
Tito Arif Sutrisno ◽  
M. Muhajir ◽  
Neena Zakia ◽  
Uun Yanuhar
Keyword(s):  
Bacterial Cellulose ◽  
Diffraction Peak ◽  
Cellulose Film ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure And Morphology ◽  
Pineapple Peel ◽  
Diffraction Angle ◽  
Structure Observation ◽  
Peel Extract

The cellulose extracts from plants are need of energy and have potential in damaging the environment so that an alternative cellulose source with more efficient results is by using bacteria to produce the cellulose fibers. This study aims to determine the effect of hydrogen peroxide (H2O2) treatment on the structure and transparency of biopolymer bacterial cellulose film (BCF). The method used is the making of BCF by utilizing pineapple peel extract and then cooking at 80°C for 120 min. with H2O2 concentration of 0%, 2.5%, 5%, and 7,5%. Drying is done in the electric oven and then observed the structure and morphology using X-ray diffraction and transparency test, respectively. The result of structure observation shows that the intensity of the highest diffraction peak lies at a diffraction angle of 22° achieved at 5% peroxide treatment with crystallinity and crystal index of 85.1% and 82.4%, respectively. Transparency testing shows that the higher the concentration of peroxide used, the better the transparency.

Effect of Drying Methods on the Structure of Bacterial Cellulose from Pineapple Peel Extract

2020 ◽  
Vol 851 ◽  
pp. 79-85
Author(s):  
Heru Suryanto ◽  
Muhamad Muhajir ◽  
Neena Zakia ◽  
Uun Yanuhar ◽  
Aminnudin Aminnudin ◽  
...  
Keyword(s):  
High Pressure ◽  
Bacterial Cellulose ◽  
Freeze Drying ◽  
Film Structure ◽  
Drying Methods ◽  
Drying Method ◽  
Cellulose Films ◽  
Pineapple Peel ◽  
High Pressure Homogenizer ◽  
Peel Extract

Properties of Bacterial Cellulose was depended on the fermentation conditions to produce BC as well as the processing steps for modifying the Bacterial Cellulose microstructure. This study reports on the comparison effect of drying method on Bacterial Cellulose films structure produced from Pineapple Peel Extract. The drying method was done in the oven and freeze-drying. Pellicle as results of fermentation by bacteria was dried in the oven. High-pressure homogenization was applied before the freeze-drying method. BC film structure was observed using scanning electron microscopy and evaluated using X-ray diffraction. The results show that the peak of diffractogram shows crystalline peaks in a relatively similar position, which are at about 14° and 22°. High-pressure homogenizer process before freeze-drying results the structure with higher crystalline compare than oven drying. The index of crystalline and degree of crystalline of BC film in the freeze-drying method were higher than those in the oven with a value of 83% and 86% compared than 81% and 84%, respectively. Drying methods to pellicle in the oven and freeze-drying results in the degree of crystalline of 79% and 71%, respectively. The morphology of the freeze-drying methods contains a more porous structure.

scholarly journals INCORPORATING PINEAPPLE PEEL EXTRACT INTO CHITOSAN COATING FOR RETAINING POSTHARVEST QUALITY OF WHITE SHRIMP (Litopaeneus vannamei)

2021 ◽  
Vol 3 (4) ◽  
pp. 183-194
Author(s):  
MAISARAH SHAMSULKAMAL ◽  
◽  
WAN ZAWIAH WAN ABDULLAH ◽  
AIDILLA MUBARAK ◽  
◽  
...  
Keyword(s):  
White Shrimp ◽  
Postharvest Quality ◽  
Chitosan Coating ◽  
Pineapple Peel ◽  
Peel Extract

scholarly journals ANTIOXIDANT POTENTIAL OF DIFFERENT PARTS OF BOGOR PINEAPPLE (ANANAS COMOSUS [L.] MERR. VAR. QUEEN) CULTIVATED IN WEST JAVA-INDONESIA

2018 ◽  
Vol 11 (1) ◽  
pp. 129
Author(s):  
Irda Fidrianny ◽  
Veliana Virna ◽  
Muhamad Insanu
Keyword(s):  
Ethyl Acetate ◽  
Antioxidant Activities ◽  
Ananas Comosus ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Antioxidant Power ◽  
Pineapple Peel ◽  
Dpph Method ◽  
Peel Extract ◽  
Different Parts

  Objective: The aims of this research were to observe antioxidant activities from different parts of Bogor pineapple (Ananas comosus [L.] Merr. Var. Queen) using two antioxidant testing methods which were 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) and correlation of total phenolic and flavonoid contents with their inhibitory concentration 50% (IC50) of DPPH and exhibitory concentration 50% (EC50) of FRAP.Methods: Each sample was extracted by reflux using different polarity solvents. Antioxidant activities were determined using DPPH and FRAP assays, total phenolic content (TPC) using Folin–Ciocalteu reagent, flavonoid content by Chang’s method, and correlation with their IC50 DPPH and EC50 FRAP were analyzed by Pearson’s method.Results: IC50 DPPH of various extracts of different parts of Bogor pineapple ranged from 0.13 to 68.17μg/ml. The ethyl acetate peel extract of Bogor pineapple presented the highest TPC (7.84 g GAE/100 g) while the highest total flavonoid content (10.84 g QE/100 g) was shown by ethyl acetate bract extract of Bogor pineapple. TPC in peel extract of Bogor pineapple had negative and significant correlation with their EC50 FRAP. The IC50 DPPH and EC50 FRAP of peel extract of Bogor pineapple showed positive and significant correlation.Conclusion: All different part extracts of Bogor pineapple (except n-hexane flesh extract, peel extract, and bract extract) were categorized as a very strong antioxidant by DPPH method. Phenolic compounds in peel extract of Bogor pineapple were the major contributor in antioxidant activities by FRAP method. DPPH and FRAP methods gave linear results in antioxidant activities of Bogor pineapple peel extract.

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