Effect of chitosan coating incorporated with pomegranate peel extract on pear fruit softening, quality, and cell wall degrading enzymes during cold storage

2021 ◽  
Author(s):  
Megha M ◽  
Parmpal S. Gill ◽  
Sukhjit K. Jawandha ◽  
Nirmaljit Kaur ◽  
Mandeep S. Gill
Keyword(s):  
Cell Wall ◽  
Cold Storage ◽  
Fruit Softening ◽  
Pear Fruit ◽  
Cell Wall Degrading Enzymes ◽  
Pomegranate Peel ◽  
Chitosan Coating ◽  
Degrading Enzymes ◽  
Pomegranate Peel Extract ◽  
Peel Extract

EFFECT OF SILENCING OF CELL WALL DEGRADING ENZYMES ON STRAWBERRY FRUIT SOFTENING

2009 ◽  
pp. 931-934 ◽  
Author(s):  
M.A. Quesada ◽  
S. Posé ◽  
N. Santiago-Doménech ◽  
R. Sesmero ◽  
M.C. Molina ◽  
...  
Keyword(s):  
Cell Wall ◽  
Fruit Softening ◽  
Strawberry Fruit ◽  
Cell Wall Degrading Enzymes ◽  
Degrading Enzymes

scholarly journals Inhibitory Effects of CaCl2 and Pectin Methylesterase on Fruit Softening of Raspberry during Cold Storage

Horticulturae ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Ran Yan ◽  
Cong Han ◽  
Maorun Fu ◽  
Wenxiao Jiao ◽  
Weihao Wang
Keyword(s):  
Cell Wall ◽  
Cold Storage ◽  
Middle Lamella ◽  
Free Water ◽  
Pectin Methylesterase ◽  
Wall Structure ◽  
Rapid Decline ◽  
Fruit Softening ◽  
Cell Wall Degrading Enzymes

Quality of raspberry fruit experiences a rapid decline after harvest due to its vulnerable texture and high moisture content. Application of calcium chloride (CaCl2) combined with pectin methylesterase (PME) is efficient in delaying fruit softening. In this study, the effects of exogenous CaCl2 alone or in combination with PME on the structure of the cell wall, the molecular properties of pectin, and the amount of free water of raspberry during postharvest storage were investigated. The results showed that CaCl2 combined with PME treatment could maintain fruit firmness and inhibit weight loss. The treatment of CaCl2+PME maintained the cell wall structure via sustaining middle lamella integrity and reducing the activities of cell wall-degrading enzymes, such as polygalacturonase, pectin methylesterase, β-galactosidase, α-L-arabinofuranosidase, and β-xylosidase. In addition, CaCl2+PME treatment could effectively increase the content of chelate-soluble pectin (CSP) and develop a cross-linked structure between Ca2+ and CSP. Moreover, CaCl2+PME treatment was of benefit in maintaining free water content. CaCl2 in combination with PME treatment could be a promising method for inhibiting softening and maintaining the quality of postharvest raspberry during cold storage.

Preparation and Biochemical Evaluation of Functionalized Multi-Walled Carbon Nanotubes with Punica granatum Extract

2019 ◽  
Vol 15 (1) ◽  
pp. 138-144 ◽  
Author(s):  
Ahmed A. Haroun ◽  
Abdel-Tawab H. Mossa ◽  
Samia M.M. Mohafrash
Keyword(s):  
Liver Enzymes ◽  
Histopathological Analysis ◽  
Pomegranate Peel ◽  
Liver And Kidney ◽  
Multi Walled Carbon Nanotubes ◽  
Pomegranate Peel Extract ◽  
Walled Carbon Nanotubes ◽  
Functionalized Mwcnts ◽  
Peel Extract

Background: Funcionalized multi-walled carbon nanotubes (ox-MWCNTs) were used for the preparation of therapeutic nanoparticles for delivery of some bioactive compounds. Consequently, this work deals with the preparation of grafted MWCNTs with n-vinyl caprolactam in the presence of pomegranate peel extract (P. granatum), titanium dioxide (TiO2) and/or silver nanoparticeles and their toxic effects on male mice using in vivo biological examination (liver and kidney dysfunction biomarkers) and the histopathological analysis. Methods: P. granatum extract was immobilized onto functionalized MWCNTs using simple adsorption technique. Moreover, The prepared materials were analyzed by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM). In vivo examination using liver and kidney dysfunction biomarkers was investigated. In addition, the histopathological study was carried out. Results: The ox-MWCNTs induced significant elevation in the liver enzymes including AST, ALT and ALP relative to the control group. While, the treatment with P. granatum extract only did not induce any change in the liver and kidney biomarkers. In other words, P. granatum extract loaded onto functionalized MWCNTs showed low effects on liver enzymes and kidney function biomarkers in the treated mice in comparison with ox-MWCNTs and extract separately. Moreover, histopathological analysis revealed that the P. granatum extract functionalized MWCNTs exhibited normal renal tissue with no histopathological alteration. Conclusion: The grafted MWCNTs with n-vinyl caprolactam in the presence of pomegranate peel extract (P. granatum), titanium dioxide (TiO2) and/or silver nanoparticeles were successfully prepared. SEM-micrographs showed complete coating of MWCNTs fiber with the extract. The prepared materials resulted in no toxic effects and the histopathological findings were confirmed by inflammation of the liver and kidney tissues.

Sargassum fusiforme together with turmeric extract and pomegranate peel extract alleviates obesity in high fat-fed C57BL/6J mice

2021 ◽  
Author(s):  
Sainan Zhou ◽  
Qing Zhang ◽  
Yuan Gao ◽  
Fang Liu ◽  
Wanxiu Cao ◽  
...  
Keyword(s):  
Intestinal Flora ◽  
Obese Mice ◽  
High Fat ◽  
Pomegranate Peel ◽  
Fat Accumulation ◽  
Sargassum Fusiforme ◽  
Turmeric Extract ◽  
Pomegranate Peel Extract ◽  
Peel Extract

Sargassum fusiforme together with the turmeric extract and pomegranate peel extract may effectively reduce fat accumulation and improve the disorder of intestinal flora in obese mice.

scholarly journals Pomegranate Peel Extract Is a Potential Alternative Therapeutic for Giardiasis

Antibiotics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 705
Author(s):  
Asmaa M. El-Kady ◽  
Iman A. M. Abdel-Rahman ◽  
Samer S. Fouad ◽  
Khaled S. Allemailem ◽  
Taghrid Istivan ◽  
...  
Keyword(s):  
Diarrheal Disease ◽  
Apoptotic Cell ◽  
In Vitro Study ◽  
Ethanolic Extract ◽  
Control Group ◽  
Pomegranate Peel ◽  
Pomegranate Peel Extract ◽  
Multiple Drugs ◽  
Peel Extract

Giardiasis is a major diarrheal disease affecting approximately 2.5 million children annually in developing countries. Several studies have reported the resistance of Giardia lamblia (G. lamblia) to multiple drugs. Therefore, identifying an effective drug for giardiasis is a necessity. This study examined the antiparasitic effect of Punica granatum (pomegranate) and evaluated its therapeutic efficacy in rats infected with G. lamblia. In vitro study showed high efficacy of pomegranate peel ethanolic extract in killing G. lamblia cysts as demonstrated by eosin vital staining. We showed that treating infected rats with pomegranate extract resulted in a marked reduction in the mean number of G. lamblia cysts and trophozoites in feces and intestine respectively. Interestingly, the number of G. lamblia trophozoites and cysts were significantly lower in the pomegranate extract-treated group compared to the metronidazole-positive control group. Moreover, pomegranate extract treatment significantly induced nitric oxide (NO) and reduced serum IL-6 and TNF-α, compared to infected untreated rats. Histological and scanning electron microscopy (SEM) examination of the jejunum and duodenum of pomegranate extract-treated animals confirmed the antiparasitic effect of the extract, and demonstrated the restoration of villi structure with reduction of villi atrophy, decreased infiltration of lymphocytes, and protection of intestinal cells from apoptotic cell death. In conclusion, our data show that the pomegranate peel extract is effective in controlling G. lamblia infections, which suggests that it could be a viable treatment option for giardiasis.

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