Effect of a Novel Edible Composite Coating Based on Gum Arabic and Chitosan on Biochemical and Physiological Responses of Banana Fruits during Cold Storage

2011 ◽  
Vol 59 (10) ◽  
pp. 5474-5482 ◽  
Author(s):  
Mehdi Maqbool ◽  
Asgar Ali ◽  
Peter G. Alderson ◽  
Noosheen Zahid ◽  
Yasmeen Siddiqui
Keyword(s):  
Composite Coating ◽  
Cold Storage ◽  
Physiological Responses ◽  
Gum Arabic ◽  
Edible Composite Coating

Control of postharvest anthracnose of banana using a new edible composite coating

2010 ◽  
Vol 29 (10) ◽  
pp. 1136-1141 ◽  
Author(s):  
Mehdi Maqbool ◽  
Asgar Ali ◽  
Senthil Ramachandran ◽  
Daniel R. Smith ◽  
Peter G. Alderson
Keyword(s):  
Composite Coating ◽  
Edible Composite Coating

scholarly journals Rheological and Microstructural Features of Plant Culture Media Doped with Biopolymers: Influence on the Growth and Physiological Responses of In Vitro-Grown Shoots of Thymus lotocephalus

2021 ◽  
Vol 2 (2) ◽  
pp. 538-553
Author(s):  
Natacha Coelho ◽  
Alexandra Filipe ◽  
Bruno Medronho ◽  
Solange Magalhães ◽  
Carla Vitorino ◽  
...  
Keyword(s):  
In Vitro Culture ◽  
Culture Medium ◽  
Culture Media ◽  
Average Pore Size ◽  
Physiological Responses ◽  
Gum Arabic ◽  
Shoot Elongation ◽  
Hydroxyethyl Cellulose ◽  
Plant Culture

In vitro culture is an important biotechnological tool in plant research and an appropriate culture media is a key for a successful plant development under in vitro conditions. The use of natural compounds to improve culture media has been growing and biopolymers are interesting alternatives to synthetic compounds due to their low toxicity, biodegradability, renewability, and availability. In the present study, different culture media containing one biopolymer (chitosan, gum arabic) or a biopolymer derivative [hydroxyethyl cellulose (HEC), carboxymethyl cellulose (CMC)], at 100 or 1000 mg L−1, were tested regarding their influence on the growth and physiological responses of Thymus lotocephalus in vitro culture. Cellulose-based biopolymers (HEC and CMC) and gum arabic were used for the first time in plant culture media. The results showed that CMC at 100 mg L−1 significantly improved shoot elongation while chitosan, at the highest concentration, was detrimental to T. lotocephalus. Concerning only the evaluated physiological parameters, all tested biopolymers and biopolymer derivatives are safe to plants as there was no evidence of stress-induced changes on T. lotocephalus. The rheological and microstructural features of the culture media were assessed to understand how the biopolymers and biopolymer derivatives added to the culture medium could influence shoot growth. As expected, all media presented a gel-like behaviour with minor differences in the complex viscosity at the beginning of the culture period. Most media showed increased viscosity overtime. The surface area increased with the addition of biopolymers and biopolymer derivatives to the culture media and the average pore size was considerably lower for CMC at 100 mg L−1. The smaller pores of this medium might be related to a more efficient nutrients and water uptake by T. lotocephalus shoots, leading to a significant improvement in shoot elongation. In short, this study demonstrated that the different types of biopolymers and biopolymer derivatives added to culture medium can modify their microstructure and at the right concentrations, are harmless to T. lotocephalus shoots growing in vitro, and that CMC improves shoot length.

A comparative study on quality attributes and physiological responses of organic and conventionally grown table grapes during cold storage

2019 ◽  
Vol 247 ◽  
pp. 86-95 ◽  
Author(s):  
Pari Zahedipour ◽  
Mohammadreza Asghari ◽  
Babak Abdollahi ◽  
Mohammad Alizadeh ◽  
Yunes Rezaei Danesh
Keyword(s):  
Comparative Study ◽  
Cold Storage ◽  
Physiological Responses ◽  
Quality Attributes ◽  
Table Grapes

scholarly journals Effect of Gum Arabic and Starch-Based Coating and Different Polyliners on Postharvest Quality Attributes of Whole Pomegranate Fruit

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 164
Author(s):  
Tatenda Gift Kawhena ◽  
Umezuruike Linus Opara ◽  
Olaniyi Amos Fawole
Keyword(s):  
Weight Loss ◽  
Effective Treatment ◽  
Cold Storage ◽  
High Density Polyethylene ◽  
Gum Arabic ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Respiration Rates ◽  
Pomegranate Fruit

This study investigated the effect of gum Arabic and starch-based coating and two polyliners (Liner 1-micro-perforated Xtend® and Liner 2-macro-perforated high-density polyethylene) on whole ‘Wonderful’ pomegranate fruit during cold storage (5 ± 1 °C and 95 ± 2% RH). Uncoated (UC) and coated (GAMS) fruit were packaged into standard open top ventilated cartons (dimensions: 0.40 m long, 0.30 m wide and 0.12 m high) with (GAMS + Liner 1, GAMS + Liner 2, UC + Liner 1 and UC + Liner 2) or without (UC and GAMS) polyliners. After 42 d, treatment GAMS + Liner 1 recorded the least weight loss (4.82%), whilst GAMS recorded lower (8.77%) weight loss than UC + Liner 2 (10.07%). The highest (24.74 mLCO2 kg−1h−1) and lowest (13.14 mLCO2 kg−1h−1) respiration rates were detected in UC and GAMS + Liner 1, respectively. The highest and lowest total soluble solids were recorded for GAMS (16.87 °Brix), and GAMS + Liner 1 (15.60 °Brix) and UC + Liner 1 (15.60 °Brix), respectively. Overall, no decay was detected for coated fruit packaged with either Liner 1 or Liner 2. Therefore, the combination of GAMS with Xtend® polyliners proved to be an effective treatment to maintain the quality of ‘Wonderful’ pomegranates during storage.

scholarly journals Postharvest application of gum arabic and essential oils for controlling anthracnose and quality of banana and papaya during cold storage

2011 ◽  
Vol 62 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Mehdi Maqbool ◽  
Asgar Ali ◽  
Peter G. Alderson ◽  
Mahmud Tengku Muda Mohamed ◽  
Yasmeen Siddiqui ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cold Storage ◽  
Gum Arabic ◽  
Postharvest Application

Effects of Persian gum and gum Arabic on the survival of Lactobacillus plantarum PTCC 1896, Escherichia coli, Xanthomonas axonopodis, and Saccharomyces cerevisiae during freeze drying

2017 ◽  
Vol 119 (2) ◽  
pp. 331-341 ◽  
Author(s):  
Elyas Mohammadi-Gouraji ◽  
Mahmoud Sheikh-Zeinoddin ◽  
Sabihe Soleimanian-Zad
Keyword(s):  
Escherichia Coli ◽  
Saccharomyces Cerevisiae ◽  
Lactobacillus Plantarum ◽  
Cold Storage ◽  
Freeze Drying ◽  
Skim Milk ◽  
Gum Arabic ◽  
Protective Agent ◽  
Content Type ◽  
Xanthomonas Axonopodis

Purpose The purpose of this paper is to evaluate the protective effects of Persian gum and gum Arabic on the survival of Lactobacillus plantarum subsp. plantarum PTCC 1896, Escherichia coli, Xanthomonas axonopodis, and Saccharomyces cerevisiae during freeze drying. Design/methodology/approach Cultures were harvested from the early stationary phase and enumerated after dilution according to the Milse Misra method. Bacterial suspensions were mixed with protective agents and frozen at –80°C before drying in a freeze dryer. Survival rates were determined both immediately during freeze drying and after 14 days of cold storage (at 4°C). Findings Compared to gum Arabic 5 and 10 percent (W/V) or skim milk 10 percent (W/V), Persian gum 1 percent (W/V) showed no significantly different effects on the survival of Lactobacillus plantarum subsp. plantarum PTCC 1896 (p<0.05). Similarly, no significant differences (p<0.05) were observed between Persian gum 6 percent (W/V), gum Arabic 6 percent (W/V), the combination of Persian gum 3 percent (W/V) and gum Arabic 3 percent (W/V), and skim milk 10 percent (W/V) in terms of their effects on the survival of Escherichia coli. Skim milk 10 percent (W/V) was, however, found to have significant (p<0.05) effects on the survival of Xanthomonas axonopodis and Saccharomyces cerevisiae. Statistically significant (p<0.05) effects were observed after 14 days of cold storage (4°C) by Persian gum 6 percent (W/V) on the survival of Escherichia coli and by gum Arabic 6 percent (W/V) on the survival of Xanthomonas axonopodis and Saccharomyces cerevisiae. It was concluded that protective agents could be replaced by Persian gum for its effect on the survival rate of Escherichia coli and by skim milk for its effects on the survival of Xanthomonas axonopodis and Saccharomyces cerevisiae. Persian gum 6 percent (W/V) seemed to be the best protective agent for Escherichia coli during 14 days of its storage as gum Arabic 6 percent (W/V) seemed to have the same performance for Xanthomonas axonopodis and Saccharomyces cerevisiae. Persian gum 1 percent (W/V) was also found an alternative protective agent for the freeze drying of Lactobacillus plantarum subsp. plantarum PTCC 1896. Originality/value As Iranian Persian gum is cheap due to its wide availability and seems to have effects similar to those of gum Arabic and skim milk at low concentrations, it may be considered a good candidate for industrial applications.

Effects of continuous 0.3 ppm ozone exposure on decay development and physiological responses of peaches and table grapes in cold storage

2002 ◽  
Vol 24 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Lluı́s Palou ◽  
Carlos H Crisosto ◽  
Joseph L Smilanick ◽  
James E Adaskaveg ◽  
Juan P Zoffoli
Keyword(s):  
Cold Storage ◽  
Physiological Responses ◽  
Ozone Exposure ◽  
Table Grapes ◽  
Decay Development

Microencapsulated cells of Lactobacillus paracasei subsp. paracasei in biopolymer complex coacervates and their function in a yogurt matrix

2017 ◽  
Vol 8 (2) ◽  
pp. 554-562 ◽  
Author(s):  
L. A. Bosnea ◽  
T. Moschakis ◽  
C. G. Biliaderis
Keyword(s):  
Gastric Juice ◽  
Whey Protein ◽  
Cold Storage ◽  
Gum Arabic ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Lactobacillus Paracasei ◽  
Complex Coacervation ◽  
Encapsulated Cells

L. paracasei subsp. paracasei E6 cells were encapsulated by complex coacervation using whey protein isolate (WPI) and gum arabic and introduced in stirred yogurts. The encapsulated cells showed improved survival during product cold storage and on exposure to simulated gastric juice.

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