Search results

1 – 10 of 78
Article
Publication date: 12 February 2018

Pranav Chauhan, Arun K. Das, P.K. Nanda, Vishal Kumbhar and J.P. Yadav

Black cumin (Nigella sativa L.) is well known for its strong, hot, peppery taste and has many nutritional, pharmaceutical and traditional therapeutic uses. The aim of this study…

Abstract

Purpose

Black cumin (Nigella sativa L.) is well known for its strong, hot, peppery taste and has many nutritional, pharmaceutical and traditional therapeutic uses. The aim of this study was to investigate the antioxidant effect of different solvent extracts of black cumin seed to retard lipid and protein oxidation in raw ground pork meat during refrigerated storage (4 ± 1°C) for nine days.

Design/methodology/approach

Black cumin extracts (BCEs) were prepared using different solvents, namely, ethanol, water, ethanol:water (60:40) and methanol:hot water (60:40). Extracts were analysed for total phenolic content (TPC), 1,1 diphenyl-2-picrylhydrazil (DPPH) radical scavenging activity and reducing power. Based on the results, water extract (WE) and ethanol–water extract (EHWE) of black cumin were selected and incorporated at 1.5 per cent into freshly minced pork meat and compared with a synthetic antioxidant, butylated hydroxytoluene (BHT; 100 ppm), in retarding lipid and protein oxidation. Treated and control samples were aerobically packed in low-density polyethylene bags for analysis of various parameters (pH, colour and odour score, peroxide, lipid and protein oxidation) during nine-day refrigerated storage study.

Findings

Results showed that BCEs had a good amount of TPC (4.4-7.4 mg gallic acid equivalents/g) and also DPPH scavenging activities (33.96-44.23 per cent), with WE and EHWE extracts showing highest reducing power and promising antioxidant capacity. Hence, BCEs (WE and EHWE) incorporated at 1.5 per cent into freshly minced pork meat was tested, compared to BHT (100 ppm) and control samples, in retarding lipid and protein oxidation during storage. In BCE-treated samples, thiobarbituric acid reacting substances, free fatty acids, peroxide, formation of protein carbonyls and off-odour or rancid odour development were lower than control and values were comparable with BHT. Incorporation of BCE did not negatively affect the colour of ground pork.

Originality/value

BCEs (WE and EHWE) at 1.5 per cent inhibited protein and lipid oxidation and it could be exploited commercially as an effective alternative in retarding oxidative deterioration of meat products.

Details

Nutrition & Food Science, vol. 48 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 29 February 2024

Aida Malek Mahdavi and Zeinab Javadivala

This systematic review aims to gain the studies regarding the effect of Nigella Sativa (N. sativa) on adipokines including leptin, adiponectin and resistin.

Abstract

Purpose

This systematic review aims to gain the studies regarding the effect of Nigella Sativa (N. sativa) on adipokines including leptin, adiponectin and resistin.

Design/methodology/approach

Search was carried out using databases Scopus, Web of Science, PubMed and Google Scholar with no restriction on language or date until February 2023 and alert services were applied to identify any paper after the primary search.

Findings

Eighteen animal and human studies were eligible for the current systematic review. Leptin and resistin levels showed a downward tendency after consuming N. sativa and its ingredients [e.g. oil, thymoquinone (TQ) and thymol] as well as its extracts (e.g. water extract). Furthermore, considering 4 of 8 animal research studies and 2 of 5 human studies that evaluated adiponectin levels, a significant increase was observed after using N. sativa and its ingredients (e.g. oil, TQ and thymol).

Originality/value

The present paper collates evidence from animal and human studies regarding the effect of N. sativa on adipokines including leptin, adiponectin and resistin.

Details

Nutrition & Food Science , vol. 54 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 29 June 2012

Muhammad Tauseef Sultan, Masood Sadiq Butt, Farhan Saeed and Rizwana Batool

Nigella sativa L. (black cumin) has a unique nutritional profile that can be employed in food formulation to improve health of consumers. Black cumin is already used in…

Abstract

Purpose

Nigella sativa L. (black cumin) has a unique nutritional profile that can be employed in food formulation to improve health of consumers. Black cumin is already used in traditional medicines in Pakistan to treat various maladies like diabetes mellitus, gastrointestinal disorders, and as immune booster. The core objective of the present research study is to explore the role of black cumin fixed oil (BCFO) as a functional ingredient in cereal‐based bakery products.

Design/methodology/approach

The BCFO was supplemented in cookies' formulations and impact on nutritive quality, tocopherols and thymoquinone contents was studied.

Findings

The results indicated that addition of fixed oil influenced the physical characteristics of cookies significantly. Chemical attributes varied non‐significantly, but oxidative stability of the cookies was improved as indicated from decreased peroxide (POV) and TBA value. Gradual increase in BCFO in cookies formulations increased the amounts of total tocopherols significantly from 9.85 ± 0.392 to 53.19 ± 1.689 mg/kg‐oil. BCFO addition significantly enhanced α‐, β‐, γ‐, δ‐tocopherols i.e. 8.80±0.630 to 32.19±1.410, 0.96±0.035 to 3.47±0.114, 0.09 ± 0.000 to 14.98 ± 0.520, 0.00 ± 0.000 to 2.55 ± 0.127 mg/kg‐oil, respectively. Likewise, thymoquinone contents were recorded highest in cookies containing 5.0 @ BCFO (7.25 ± 0.482 mg/100 g) as compared to control. Moreover, cookies containing fixed oil @ 4% rated better on hedonic scale as compared with control by the trained taste panel during sensory evaluation.

Originality/value

The results of present research paved the way for the commercial applications of BCFO especially in cereal‐based products. Moreover, present intervention heightened the prospects of using black cumin seed oil in different food products that may produce healthy impact on end consumers.

Article
Publication date: 21 June 2011

M. Abdullah Dar

The purpose of this paper is to make people aware of organic corrosion inhibitors.

1575

Abstract

Purpose

The purpose of this paper is to make people aware of organic corrosion inhibitors.

Design/methodology/approach

As it is a literature review paper, no specific method is used.

Findings

It has been found that plant extracts and oils show inhibition efficiency up to 98 percent, so it is certain that plant extracts and oils are effective corrosion inhibitors and can be successfully used at the industrial level.

Research limitations/implications

Plant extracts and oils are also found to be non‐toxic, highly efficient, renewable and cheap. But less effort has been given towards the identification of which compound is active in the extract.

Originality/value

The paper shows detailed account of the inhibitors obtained from plants, which are used as natural corrosion inhibitors.

Details

Industrial Lubrication and Tribology, vol. 63 no. 4
Type: Research Article
ISSN: 0036-8792

Keywords

Case study
Publication date: 30 December 2015

Debjit Roy and Atul Maheshwari

Kunvarji Group is on its way to transform from a commodity trading business to a service-driven business. To become an integrated service provider in the agri-supply chain…

Abstract

Kunvarji Group is on its way to transform from a commodity trading business to a service-driven business. To become an integrated service provider in the agri-supply chain, Kunvarji is by participating actively in procurement, trading, and now eyeing options for providing agri-storage services. Their dilemma reeled around the choice of storage that should be preferred for better returns: warehouse, cold storage, or silos? What should be Kunvarji's growth strategy?

Details

Indian Institute of Management Ahmedabad, vol. no.
Type: Case Study
ISSN: 2633-3260
Published by: Indian Institute of Management Ahmedabad

Keywords

Article
Publication date: 10 May 2013

Muhammad Nadeem, Faqir Muhammad Anjum, Muhammad Issa Khan, Saima Tehseen, Ahmed El‐Ghorab and Javed Iqbal Sultan

The purpose of this paper is to provide a comprehensive overview of multiple functions of the coriander plant, including its nutritional and nutraceutical benefits, with special…

2232

Abstract

Purpose

The purpose of this paper is to provide a comprehensive overview of multiple functions of the coriander plant, including its nutritional and nutraceutical benefits, with special reference to linalool.

Design/methodology/approach

The authors undertake a literature review of the coriander plant's history, chemical composition of coriander parts and its oil, and their nutraceutical potential. Various phytopharmacological appraisals have been discussed at length to investigate their important potential.

Findings

Coriander is an annual, herbaceous plant which originated from the Mediterranean and Middle Eastern regions and known as medicinal plants. Coriander contains an essential oil (0.03‐2.6%). The different parts of this plant contain monoterpenes, limpnene, α‐pinene, γ‐terpinene, p‐cymene, citronellol, borneol, camphor, coriandrin, geraniol, dihydrocoriandrin, coriandronsA‐E, flavonoids and essential oils. It is used as a stomachic, spasmolytic and carminative which have a greater bioactive property. Various parts of this plant, such as seeds, leaves, flower and fruit, possess antioxidant activity, diuretic, anti‐convulsant anti‐diabetic activity, sedative hypnotic activity, anti‐mutagenic, anti‐microbial activity, anthelmintic activity. The physical properties, chemical composition and bioactivity affect the coriander's commercial value.

Research limitations/implications

Currently available information on coriander seeds and leaves is insufficient. These observations have led to continuing research aimed at identifying specific bioactive components in foods, such as antioxidants, which may be responsible for improving and maintaining health. Antioxidants are present in foods as vitamins, minerals, carotenoids, and polyphenols. Coriander is also rich in such compounds. Research supports that some of these foods, as part of an overall healthful diet, have the potential to delay the onset of many age‐related diseases, so there is urgent need to explore the role of these compounds.

Originality/value

This review is unique in its comprehensive nature and reflects the importance of coriander as a medicinal food.

Details

British Food Journal, vol. 115 no. 5
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 2 August 2021

Naeem Abas, Esmat Kalair, Saad Dilshad and Nasrullah Khan

The authors present the impact of the coronavirus disease 2019 (COVID-19) pandemic on community lifelines. The state machinery has several departments to secure essential…

Abstract

Purpose

The authors present the impact of the coronavirus disease 2019 (COVID-19) pandemic on community lifelines. The state machinery has several departments to secure essential lifelines during disasters and epidemics. Many countries have formed national disaster management authorities to deal with manmade and natural disasters. Typical lifelines include food, water, safety and security, continuity of services, medicines and healthcare equipment, gas, oil and electricity supplies, telecommunication services, transportation means and education system. Supply chain systems are often affected by disasters, which should have alternative sources and routes. Doctors, nurses and medics are front-line soldiers against diseases during pandemics.

Design/methodology/approach

The COVID-19 pandemic has revealed how much we all are connected yet unprepared for natural disasters. Political leaders prioritize infrastructures, education but overlook the health sector. During the recent pandemic, developed countries faced more mortalities, fatalities and casualties than developing countries. This work surveys the impact of the COVID-19 pandemic on health, energy, environment, industry, education and food supply lines.

Findings

The COVID-19 pandemic caused 7% reductions in greenhouse gas (GHG) emissions during global lockdowns. In addition, COVID-19 has affected social fabric, behaviors, cultures and official routines. Around 2.84 bn doses have been administrated, with approximately 806 m people (10.3% of the world population) are fully vaccinated around the world to date. Most developed vaccines are being evaluated for new variants like alpha, beta, gamma, epsilons and delta first detected in the UK, South Africa, Brazil, USA and India. The COVID-19 pandemic has affected all sectors in society, yet this paper critically reviews the impact of COVID-19 on health and energy lifelines.

Practical implications

This paper critically reviews the health and energy lifelines during pandemic COVID-19 and explains how these essential services were interrupted.

Originality/value

This paper critically reviews the health and energy lifelines during pandemic COVID-19 and explains how these essential services were interrupted.

Details

Continuity & Resilience Review, vol. 4 no. 1
Type: Research Article
ISSN: 2516-7502

Keywords

Article
Publication date: 1 June 2015

M Saadawy

The purpose of this paper was to test the extract of barley as an environmentally friendly inhibitor for the acid corrosion of steel due to its wide availability as a popular…

Abstract

Purpose

The purpose of this paper was to test the extract of barley as an environmentally friendly inhibitor for the acid corrosion of steel due to its wide availability as a popular major crop and its richness with different chemical constituents reported in literature (40) like alanine, glycine, serine, aspartic acid, leucine, valine, tyrosine and isoleucine with various number of functional groups that are able to chelate metal cations and to discuss the effect of temperature on its inhibition efficiency.

Design/methodology/approach

Electrochemical impedance spectroscopy (EIS) and polarization measurements were carried out using frequency response analyzer Gill AC instrument. The frequency range for EIS measurements was 0.1 ≤ f ≤ 1 × 103 with an applied potential signal amplitude of 10 mV around the rest potential. Polarization measurements were carried out at a scan rate of 30 mV/min, utilizing a three-electrode cell. A platinum sheet and saturated calomel electrode were used as counter and reference electrodes, respectively. The working electrode was constructed with steel specimens that have the following composition (weight per cent): C, 0.21; S, 0.04; Mn, 2.5; P, 0.04; Si, 0.35; and balance Fe.

Findings

Barley extract could act as an effective corrosion inhibitor for the acid corrosion of steel. The inhibiting action of the barley extract was attributed to its adsorption over the metal surface that blocks the available cathodic and anodic sites. Adsorption isotherms indicated that the adsorbed extract molecules cover one active center over the metal surface.

Originality/value

The research included the first use of an important world crop as an effective corrosion inhibitor that can reduce the corrosion of steel to an extent of 94 per cent.

Details

Anti-Corrosion Methods and Materials, vol. 62 no. 4
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 25 July 2019

S. Sarkar and S. Chandra

Recent societal interest in healthful foods has led to the development of functional dairy products that basically provide health benefits in addition to their fundamental…

Abstract

Purpose

Recent societal interest in healthful foods has led to the development of functional dairy products that basically provide health benefits in addition to their fundamental nutrients. Yoghurt being most popular fermented milk product due to its healthy image can be an excellent carrier for probiotics. Functional properties of yoghurt can be enhanced with the inclusion of functional ingredients such as probiotics and its conjugate application with prebiotics may be advantageous as it favors probiotic growth. Nutritional and medicinal value of honey coupled with presence of oligosaccharides has projected honey as a functional additive in yoghurt.

Design/methodology/approach

Attempt has been made to review the literature on the biochemical activities of yoghurt cultures and probiotics in presence of honey. Both review and research papers related to biochemical activities and functional properties of yoghurt cultures and probiotics in presence of honey and their health benefits published in diverse journals under Pub Med and Science Direct have been considered. Keywords used for data search included functional foods, yoghurt, probiotic, health benefits, honey, etc.

Findings

Functional properties of yoghurt can be further enhanced with the inclusion of probiotic cultures and honey. Honey can be safely used in association with different probiotic cultures during yoghurt manufacture for augmenting functional properties of yoghurt to extend health benefits. Honey may not be equally a suitable matrix for all yoghurt cultures or probiotic cultures.

Research limitations/implications

Reviewed literature indicated that limited research on animal or human feeding trials with honey containing yoghurt has been done. Clinical trials with honey containing yoghurt are emerging prior to its marketing as functional food.

Originality/value

Application of honey as a functional additive during the manufacture of probiotic yoghurt is suggested to extend the functional properties of normal yoghurt.

Details

Nutrition & Food Science , vol. 50 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 6 April 2020

Ahmet Korkmaz and Fatih Oz

Heterocyclic aromatic amines are mutagenic and/or carcinogenic compounds formed during cooking of meat. Therefore, the formation levels of them should be reduced. For this aim…

Abstract

Purpose

Heterocyclic aromatic amines are mutagenic and/or carcinogenic compounds formed during cooking of meat. Therefore, the formation levels of them should be reduced. For this aim, the purpose of the present study was to determine the effect of dry breadcrumb in meatball production on the formation of heterocyclic aromatic amines. In addition, the effect of dry breadcrumb on some quality parameters of the meatballs was also investigated.

Design/methodology/approach

Meatball dough with 15 percent fat was divided into four parts, where one group was selected as the control group (without dry breadcrumb). In the other three groups, dry breadcrumb was added in various ratios of 5 percent, 10 percent and 15 percent (w/w). Then, meatball dough was stored at 4 °C for 3 h and shaped into meatballs with a metal shaping device (7 × 1 cm). For some of the quality parameters, water, pH, cooking loss and TBARS analyses were done in the samples. Heterocyclic aromatic amine analysis was done in only cooked samples according to solid phase extraction.

Findings

The use of dry breadcrumb in meatball production decreased water content and cooking loss. As cooking temperature increased, water contents and cooking loss of meatball decreased. PhIP, AαC and MeAαC were not detected in any of the samples analyzed. As cooking temperature increased, total amount of HCAs increased and ranged between 0.05 and 0.51 ng/g. While the use of dry breadcrumb in the meatball production increased IQ content of the meatballs, the use of 5 percent dry breadcrumb caused a decrease in the total HAA content (28.57–66.67 percent) for all cooking temperatures.

Originality/value

Many research studies including our study in the literature were conducted on formation and reduction of HAAs in meat and meat products. However, although dry breadcrumb is frequently used both in domestic and commercial meatball formulations; to the best of our knowledge, effect of using dry breadcrumb in meatball production on HAAs formation has not been investigated in the literature. Therefore, in the present study, the effects of the use of dry breadcrumb in meatball production on some quality parameters and formation of HAAs in meatballs cooked at 150 °C, 200 °C and 250 °C were determined.

Details

British Food Journal, vol. 122 no. 7
Type: Research Article
ISSN: 0007-070X

Keywords

1 – 10 of 78