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Article
Publication date: 1 May 2010

N.F. Ali and R.S.R. EL. Mohamedy

Two anthraquinone compounds are extracted from culture filtrates of Fusarium oxysporum isolate no. 4, which were previously isolated from roots of citrus trees affected with root…

Abstract

Two anthraquinone compounds are extracted from culture filtrates of Fusarium oxysporum isolate no. 4, which were previously isolated from roots of citrus trees affected with root rot disease. These anthraquinone compounds were identified as 2- acetyl- 3,8- dihydroxy- and/or 3-acetyl- 2,8- dihydroxy- 6- methoxy- anthraquinone. Dyeing of cationized cotton fabrics with these anthraquinone compounds as natural dyes has been studied. The values of the dyeing rate constant, half-time of dyeing and standard affinity have been calculated and discussed. The results of the dye uptake isotherms of cationized cotton fabrics dyed with these compounds indicate high dye uptake and the standard affinity of cationized cotton fiber is higher. The toxicity assay of culture filtrates as well as anthraquinone pigment extracted from Fusarium oxysporum against root growth (seed germination) of citrus seeds is investigated. Seeds of sour orange are more affected by all tested concentrations of anthraquinone compounds as well as culture filtrates of Fusarium oxysporium than other citrus seeds. Seeds of lime and Cleopatra mandarin are less affected. The effects of dye bath pH, salt concentration, dyeing time and temperature are studied. Color strength and dye uptake exhibit high values. The results of fastness properties of the dyed fabric are good.

Details

Research Journal of Textile and Apparel, vol. 14 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 17 January 2022

Chirato Godana Korra

This paper aims to prevent cotton textiles from fungi damage using eco-friendly aloe vera leaf extract, which was applied at a minimum amount, and cost-effective material.

Abstract

Purpose

This paper aims to prevent cotton textiles from fungi damage using eco-friendly aloe vera leaf extract, which was applied at a minimum amount, and cost-effective material.

Design/methodology/approach

Batch extraction method using methanol solvent; phytochemical analysis was investigated and three-level factorial design of experiment and analysis of variance (ANOVA) was used for the optimization of 27 test runs. The finish was applied by pad-dry-cue at distinct concentrations, and the chemical property after treatment was studied. Colorfastness and coordinates are analyzed. Cotton fabrics were cultured with Fusarium oxysporum fungi and the anti-fungal property was examined and reported according to AATCC 30–2004 standard.

Findings

The maximum yield of extract was at an optimum volume of 200 ml, 65 °C for 120 min. The effective antifungal fabric was achieved with minimum concentrations. There was significant strength loss in warp and weft direction. The treatment results in yellow-colored cotton fabric with fastness grade 3. The antifungal effect is durable until fifteen washes as the tensile strength losses were less than 1%.

Research limitations/implications

The findings of this work were based on samples considered in the laboratory. However, it can be reproducible at the factory production scale the treatment has the potential of yielding yellow dyed cotton fabric with multifunctional finishing.

Practical implications

The treated fabric is against Fusarium oxysporum Fungi which is one of the vital antimicrobial properties of textile apparel products for various areas of application.

Social implications

The natural extract material applied to a textile material is eco-friendly effective against microbes of cotton seeds during cultivation and apparel end-uses.

Originality/value

The work application of fungi resistance on cotton fabric using aloe vera active component was original; this work provides extraction of the active agent from aloe vera leaf, which is optimized statically and successfully applied for anti-fungal activity on cotton fabric.

Details

Research Journal of Textile and Apparel, vol. 27 no. 1
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 5 October 2015

Hanan Ibrahim Mudawi and Mohamed Osman Idris

The purpose of this paper is to investigate the ability of four microorganisms to reduce disease infection of root lesion nematode (Pratylenchus spp.) and Fusarium spp. the causal…

Abstract

Purpose

The purpose of this paper is to investigate the ability of four microorganisms to reduce disease infection of root lesion nematode (Pratylenchus spp.) and Fusarium spp. the causal agent of wilt/root-rot disease complex in chickpea.

Design/methodology/approach

A pot experiment was conducted for three consecutive winter seasons. A completely randomized design with five replicates was adopted. Two Bacillus isolates and Trichoderma harzianum and T. viride and their combinations were applied in infected soil. The effect on plant growth parameters, disease incidence and severity, root necrosis, weight of shoot and root, nematode population density and reproductive index were assessed.

Findings

The applications significantly (p=0.05) reduced the wilt/root-rot diseases complex. The reduction was attributed to the decline of the population density of nematodes in soil and root, and the suppression of the disease complex compared to controls, represented by reproductive index and the disease intensity index. Combinations were better than individual inoculation. The use of Bacillus isolate B3 and T. harzianum increased the number of flowers by 88.34 per cent. Reduction in the severity of root necrosis was in the range of 2.22-5.55 within a scale of 1-10. These findings indicate the significance of utilizing local bioagents for control of wilt/root-rot disease complex in chickpea plants.

Originality/value

The microorganisms used in this study are indigenous.

Details

World Journal of Science, Technology and Sustainable Development, vol. 12 no. 4
Type: Research Article
ISSN: 2042-5945

Keywords

Article
Publication date: 23 January 2019

Poorva Sharma, Bababode Adesegun Kehinde, Shubhneet Kaur and Pratibha Vyas

This paper aims to update with information about edible coating on minimally processed and fresh fruits, focussing on the composition, active ingredients, antimicrobial…

Abstract

Purpose

This paper aims to update with information about edible coating on minimally processed and fresh fruits, focussing on the composition, active ingredients, antimicrobial concentration and their effect on ripening rate, phytonutrients retention and shelf-life of fruits. In future, the data will be helpful for the processors to select the best coating material and its effective concentration for different fresh and minimally processed fruits.

Design/methodology/approach

Major scientific information was collected from Scopus, Web of Science, Mendeley and Google Scholar. Several key words such as postharvest, edible coating, phytonutrients, shelf-life enhancement, bioactive compounds, minimally processed fruits and antimicrobial compounds were used to find the data. Relevant information was collected by using 90 recent research and review articles.

Findings

The main findings of this comprehensive review are to improve the quality of fruits, to meet the next-generation food security needs. However, in the process of achieving the goal of improving quality of food produce, embrace of synthetic, non-biodegradable packaging materials have increased, creating serious pollution problem. Amidst several alternatives for replacement of synthetic packaging, the option of biodegradable films and coatings showed promising results.

Originality/value

The paper represents recent information about the edible coating used for the enhancement of shelf-life of fresh and minimally processed fruits.

Details

Nutrition & Food Science, vol. 49 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Open Access
Article
Publication date: 1 March 2024

Priyajit Mondal, Dhritishree Ghosh, Madhupa Seth and Subhra Kanti Mukhopadhyay

The purpose of this article is to provide information about interactions between pink-pigmented facultative methylotroph (PPFM) organisms and plants, their molecular mechanisms of…

Abstract

Purpose

The purpose of this article is to provide information about interactions between pink-pigmented facultative methylotroph (PPFM) organisms and plants, their molecular mechanisms of methylotrophic metabolism, application of PPFMs in agriculture, biotechnology and bioremediation and also to explore lacuna in PPFMs research and direction for future research.

Design/methodology/approach

Research findings on PPFM organisms as potent plant growth promoting organisms are discussed in the light of reports published by various workers. Unexplored field of PPFM research are detected and their application as a new group of biofertilizer that also help host plants to overcome draught stress in poorly irrigated crop field is suggested.

Findings

PPFMs are used as plant growth promoters for improved crop yield, seed germination capacity, resistance against pathogens and tolerance against drought stress. Anti-oxidant and UV resistant properties of PPFM pigments protect the host plants from strong sunshine. PPFMs have excellent draught ameliorating capacity.

Originality/value

To meet the ever increasing world population, more and more barren, less irrigated land has to be utilized for agriculture and horticulture purpose and use of PPFM group of organisms due to their draught ameliorating properties in addition to their plant growth promoting characters will be extremely useful. PPFMs are also promising candidates for the production of various industrially and medicinally important enzymes and other value-added products. Wider application of this ecofriendly group of bacteria will reduce crop production cost thus improving economy of the farmers and will be a greener alternative of hazardous chemical fertilizers and fungicides.

Graphicalabstract:

Details

Arab Gulf Journal of Scientific Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1985-9899

Keywords

Article
Publication date: 6 March 2017

Ahmed Fadda, Ezz Eldeen Kandeel and Eman El-Gendy

The aim of this paper is synthesis of some new hydrazo, dihydropyridazinyl and triazolyl derivatives containing indole nucleus and their antimicrobial evaluation.

Abstract

Purpose

The aim of this paper is synthesis of some new hydrazo, dihydropyridazinyl and triazolyl derivatives containing indole nucleus and their antimicrobial evaluation.

Design/methodology/approach

Treatment of 3-(1H-indol-3-yl)-3-oxopropanenitrile (1) with different aryl diazonium salts 2a-j gave the corresponding arylazohydrazone derivatives 3a-j. The azo derivatives 3d and 3e were used as the key intermediate for the synthesis of some new diazines 5d, e and triazoles 7d, e. The newly synthesized compounds were characterized by electronic absorption properties – IR, 1HNMR and MS studies – and screened for their biological evaluation. Compounds 3a-j, 5d, e and 7d, e showed promising results as antimicrobial agents.

Findings

Compounds 3a-j, 5d, e and 7d, e showed promising results as antimicrobial agents.

Originality/value

No details regarding the synthesis of such dyes are reported before in the literature.

Details

Pigment & Resin Technology, vol. 46 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 August 1986

P. Evertsen

Dispersions are quite sensitive to growth and attack by micro‐organisms. This presents itself by discolouration of the dispersion, a putrid smell, gasformation and alterations of…

Abstract

Dispersions are quite sensitive to growth and attack by micro‐organisms. This presents itself by discolouration of the dispersion, a putrid smell, gasformation and alterations of the physical properties of the pH. Total disintegration such as the dispersion seldom occurs. A contaminated product does not have to show all the above mentioned effects but may show only discolouration.

Details

Pigment & Resin Technology, vol. 15 no. 8
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 April 2014

Jaqueline Garcia-Yi

This article aims to evaluate the effect of organic coffee certification on coca cultivation, based on a survey of 496 members from coffee cooperatives located in the upper…

Abstract

Purpose

This article aims to evaluate the effect of organic coffee certification on coca cultivation, based on a survey of 496 members from coffee cooperatives located in the upper Tambopata valley in Peru. Coca is a bush from the leaves of which cocaine is extracted.

Design/methodology/approach

The results were estimated using the propensity score matching methodology.

Findings

The results suggest that participation in organic coffee certification statistically significantly reduces the scale of coca cultivation.

Originality/value

This paper analyses a unique primary data set from a coca-growing region in Peru. The value of this paper is that the results suggest that under specific conditions, such as reasonable high and stable coffee prices, organic coffee certification can be an effective element of drug control policy in Latin America.

Details

International Journal of Development Issues, vol. 13 no. 1
Type: Research Article
ISSN: 1446-8956

Keywords

Open Access
Article
Publication date: 10 October 2018

Naymul Karim and Jitbanjong Tangpong

For the prevention and cure of disease, patient use various types of chemical and drug agents. Along with their curative effect, almost all drugs have some destructive effects and…

2552

Abstract

Purpose

For the prevention and cure of disease, patient use various types of chemical and drug agents. Along with their curative effect, almost all drugs have some destructive effects and side-effects. Due to the minimal and/or none of unwanted side-effect, recently, the use of herbal remedy as the drug of choice becomes the preference choice. The mangosteen, Garcinia mangostana, contains various types of polyphenols. It has been used as a traditional medicine from the ancient times till present days. The purpose of this paper is to investigate the biological properties of mangosteen in relation to health promotion effects.

Design/methodology/approach

Several research papers from well-known database (such as PubMed, Google scholar, Scopus and Sciencedirect) were reviewed without considering publication-times to understand the biological properties of mangosteen.

Findings

Mangosteen and its xanthone exerted diverse biological activities such as anti-oxidant, anti-inflammatory, anti-allergy, anti-bacteria, anti-fungal, anti-malaria, anticancer and anti-diabetes.

Originality/value

Based on these studies, mangosteen is beneficial dietary supplement of overall human health.

Details

Journal of Health Research, vol. 32 no. 5
Type: Research Article
ISSN: 2586-940X

Keywords

Article
Publication date: 8 February 2016

Parminder Singh

The aim of the paper is to shed light on the use of chitosans and chitooligosaccharides as biopreservatives in various foods animal. Foods of animal and aquatic origin (milk…

Abstract

Purpose

The aim of the paper is to shed light on the use of chitosans and chitooligosaccharides as biopreservatives in various foods animal. Foods of animal and aquatic origin (milk, meat, fish, eggs, sea foods, etc) become contaminated with a wide range of microorganisms (bacteria, molds and yeasts) during harvesting, transporting, processing, handling and storage operations. Due to the perishable nature of these foods, their preservation is of utmost importance. Though many synthetic chemicals are available, yet their use is quite restricted due to their hazardous effects on human health.

Design/methodology/approach

Within the domain of food industry, traditionally chitosan is used for biopreservation of foods, which is well known for its nutritional and medicinal properties in human nutrition. However, chitooligosaccharides also possess a number of nutraceutical and health promoting properties in addition to their preservative effect and shelf-life extension of foods. In this study, the comparative effects of both chitosan and chitooligosaccharides on preservation of foods of animal and aquatic origin have been summarized.

Findings

Though chitosan has been extensively studied in various foods, yet the use of chitooligosaccharides has been relatively less explored. Chitooligosaccharides are bioactive molecules generated from chitosan and have several advantages over the traditional use of chitosan both in food products and on human health. But unfortunately, little or no literature is available on the use of chitooligosaccharides for preservation of some of the foods of animal origin. Notable examples in this category include cheese, beef, pork, chicken, fish, sea foods, etc.

Originality/value

This paper focuses on the effects of chitosans and chitooligosaccharides on the processing and storage quality of foods of animal and aquatic origin, which offers a promising future for the development of functional foods.

Details

Nutrition & Food Science, vol. 46 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

1 – 10 of 20