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1 – 10 of 556This research is devoted to studying the dynamics of the commodity structure of the world edible oils market in 2001–2021, with subsequent identification of the role and…
Abstract
Purpose
This research is devoted to studying the dynamics of the commodity structure of the world edible oils market in 2001–2021, with subsequent identification of the role and importance of export deliveries of Russian products in the formation of global mechanisms of supply and demand in the segment.
Design/Methodology/Approach
In the process of writing the chapter, the author used functional and mathematical analysis, statistical and computational-constructive methods, and customs statistics data from reputable international organisations and national statistical bodies. Comparing the obtained results with relevant scientific studies provides a high level of reliability of the results of this research.
Findings
Russia is currently the world's second-largest sunflower oil producer. In the near future, the country has significant potential to become the largest supplier of this product, which can significantly contribute to stabilising supply in the global edible oil market.
Originality/Value
Based on the analysis of the dynamics of change in the statistics, it is substantiated that as a result of the implementation of a balanced state policy, in two decades, Russia managed to overcome a large-scale crisis in agro-industrial production, significantly reduced its dependence on imports of oil and fat products and is currently one of the world's leading producers of sunflower oil, which allows it to play an important role in shaping supply on the world market of oil and fat products.
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Chinu Chacko and Rajamohan Thankappan
The purpose of this paper is to compare the effects of repeatedly heated coconut oil, mustard oil and sunflower oil on antioxidant status in cholesterol-fed Sprague Dawley rats.
Abstract
Purpose
The purpose of this paper is to compare the effects of repeatedly heated coconut oil, mustard oil and sunflower oil on antioxidant status in cholesterol-fed Sprague Dawley rats.
Design/methodology/approach
The test oils were heated at 210 ± 10°C for 15 h. Male Sprague Dawley rats were divided into six groups of six animals each. In total, 15% fresh/heated oils and 1% cholesterol were mixed with the experimental diet and fed to the animals for 60 days.
Findings
Chemical analysis revealed that repeated heating of oils resulted in changes in fatty acid composition and elevated lipid peroxidation, the effects being lower in heated coconut oil. Body weight gain significantly decreased in heated coconut oil (p = 0.02), heated mustard oil (p = 0.022) and heated sunflower oil (p = 0.001) fed animals. Malondialdehyde level was significantly increased (p = 0.001) in tissues of heated oils fed animals. Concentration of protein oxidation products was significantly increased (p = 0.001) in heated oils fed animals. Activities of antioxidant enzymes were decreased (p = 0.001) in heated oils fed animals. Total thiols were decreased (p = 0.001) in tissues of animals that were fed heated oils. Animals that were fed heated mustard oil and heated sunflower oil showed lower antioxidant levels and higher oxidation products when compared to those fed heated coconut oil.
Originality/value
Studies comparing the effects of thermally oxidized oils that vary in fatty acid composition are rare. The effects of fresh and heated oils that vary in fatty acid constitution, namely, coconut oil, mustard oil and sunflower oil, in cholesterol-fed rats are studied.
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Faqir Muhammad Anjum, Muhammad Nadeem, Muhammad Issa Khan and Shahzad Hussain
The purpose of this paper is to provide a comprehensive overview of multiple functions of sunflower seeds including their nutritional and nutraceutical benefits.
Abstract
Purpose
The purpose of this paper is to provide a comprehensive overview of multiple functions of sunflower seeds including their nutritional and nutraceutical benefits.
Design/methodology/approach
The literature review is of the chemical composition of sunflower seeds, their health benefits and their utilization in different products.
Findings
“We are what we eat.” All living creatures need to take in nutrients to live. Nutrients provide energy for processes in the body and can promote growth, maintenance and repair. The classes of nutrients are carbohydrates, proteins, fats, vitamins, and minerals. Sunflower seeds are a good source of all these nutrients. Plant foods such as fruits, vegetables, oil crops and whole grains contain many components that are beneficial to human health. 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.
Research limitations/implications
Currently available information on sunflower seeds 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.
Originality/value
This review is unique in its comprehensive nature. This article will reflect the role of sunflower seeds as nutritional and nutraceutical package.
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Priyanka Rastogi, Beena Mathur, Shweta Rastogi, V.P. Gupta and Rajeev Gupta
Cooking can adversely affect chemical characteristics of edible oils. The purpose of this paper is to determine biochemical changes due to cooking in commonly used Indian fats and…
Abstract
Purpose
Cooking can adversely affect chemical characteristics of edible oils. The purpose of this paper is to determine biochemical changes due to cooking in commonly used Indian fats and oils through an experimental study.
Design/methodology/approach
Changes in chemical properties of various edible oils [Indian ghee (clarified butter), hydrogenated oil, coconut oil, mustard‐rapeseed oil, groundnut oil, soyabean oil, cottonseed oil and sunflower oil] were studied. Oils were subjected to various cooking methods (shallow frying, sautéing, single deep frying and multiple deep fryings) using an inert substance. Peroxide content was estimated as index of fatty‐acid oxidation, free fatty acids, iodine value for determination of fatty‐acid unsaturation and trans‐fatty acids at baseline and after cooking using colorimetric and gas‐liquid chromatography methods. Three samples were analyzed for each process (n = 144). Significance of change was determined using t‐test.
Findings
There was a significant increase in peroxide content (mEq/L) of Indian ghee from 1.83±0.03 at baseline to 4.5–6.6 by different cooking methods, hydrogenated oil (0.45±0.07 to 1.7–8.5), coconut oil (1.01±0.01 to 3.2–9.2), mustard‐rapeseed oil (0.90±0.01 to 2.1–5.3), groundnut oil (0.96±0.01 to 1.9–3.7), soyabean oil (0.86±0.02 to 1.9–3.4), cottonseed oil (0.71±0.01 to 2.9–6.4) and sunflower oil (1.09±0.01 to 2.3–10.2) (p<0.05). Free fatty acid content (g/100 g) was in undetectable amounts in all the fats at baseline and increased in Indian ghee (0.16–0.22), hydrogenated oil (0.09–0.23), coconut oil (0.09–1.39), mustard‐rapeseed oil (0.07–0.19), groundnut oil (0.09–0.18), soyabean oil (0.06–0.12), cottonseed oil (0.09–0.22) and sunflower oil (0.08–0.13). Trans‐fatty acids increased from 0.1% at baseline to 14.5% after sautéing and shallow frying and 15.8–16.8% after deep frying in hydrogenated oils (p<0.01). The iodine value decreased, indicating a decrease in unsaturated fats, insignificantly. The largest amount of oxidation was observed by shallow frying and free‐fatty‐acid formation by multiple deep frying. Hydrogenated, coconut and sunflower oils were the most susceptible to oxidation and soyabean oil the most resistant. Single deep frying caused the least changes in chemical composition of various fats and oils. Indian cooking practices significantly increase the peroxides, free fatty acids and trans‐fatty acids in edible oils and fats. Single deep frying appears to be the least harmful method and soyabean oil the least susceptible to degradation.
Originality/value
The paper offers an experimental study to determine biochemical changes due to cooking in commonly used Indian fats and oils.
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Chinwuba Victor Ossia, Hung Gu Han and Hosung Kong
The purpose of this paper is to evaluate local biodegradable oils with long chain fatty acids namely: castor (Ricinus communis L.), jojoba (Simmondsia chinensis L.), olive (Oleo…
Abstract
Purpose
The purpose of this paper is to evaluate local biodegradable oils with long chain fatty acids namely: castor (Ricinus communis L.), jojoba (Simmondsia chinensis L.), olive (Oleo europaea L.), and sunflower (Helianthus annuus L.) oils for lubrication candidacy as a substitute to petroleum mineral oils.
Design/methodology/approach
Evaluation criteria includes antiwear, lubricity, and extreme pressure (load carrying capacity) using the four‐ball configuration, oxidation induction by pressure differential scanning calorimetry, thermal stability by thermo‐gravimetric analyses, and viscometry using relevant American Society of Testing and Materials (ASTM) standards.
Findings
The results show that the lubrication films at the interface failed by the decomposition of the metallic soaps formed by the chemical reaction of the constituent fatty acid molecules and the rubbing surfaces. The biodegradable oils show superior lubricant performance compared to the paraffin‐based mineral oil, despite their poor oxidation stability. Oxidation induction and thermo‐gravimetric characteristics of the biodegradable oils are closely related to their polyunsaturated and monounsaturated fatty acid composition.
Originality/value
The paper shows how these biodegradable oils could be used as good substitute for petroleum mineral oils in as‐received state or little antioxidant additives.
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Babur Ozcelik, Emel Kuram, Erhan Demirbas and Emrah Şik
The purpose of this paper is to investigate the performance of four cutting oils, two different vegetable‐based cutting fluids developed from refined sunflower oil and two…
Abstract
Purpose
The purpose of this paper is to investigate the performance of four cutting oils, two different vegetable‐based cutting fluids developed from refined sunflower oil and two commercial types (semi‐synthetic and mineral), for surface roughness during drilling of AISI 304 austenitic stainless steel with HSSE tool.
Design/methodology/approach
L9 (33) orthogonal array was used for the experiment plan. Spindle speed, feed rate and drilling depth were considered as machining parameters.
Findings
Results were evaluated statistically. Mathematical models based on cutting parameters were obtained from regression analyses to predict surface roughness. ANOVA was used to determine the effect of the cutting parameters on the surface roughness. The performance results were found to be better for vegetable‐based cutting oils than that of commercial ones.
Originality/value
The paper reports on the use of refined sunflower oil in drilling stainless steel.
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If you were passed by a BL 1.5 or 2‐litre car on the roads of Britain's Midands recently, you could have unknowingly witnessed the beginnings of a new epoch in transport: flower…
Abstract
If you were passed by a BL 1.5 or 2‐litre car on the roads of Britain's Midands recently, you could have unknowingly witnessed the beginnings of a new epoch in transport: flower power with a vengeance. For the overtaking car chugging effortlessly by in the other lane might well have been a test diesel‐type model running on liquid flower power — sunflower oil. Its engine, run entirely on ordinary sunflower oil as used by thousands of housewives in their kitchens, is claimed to do up to 75 miles per gallon.
Abhinandan Jain and Vivek Singh
The year 2010 was coming to a close, and Kapil, Marketing Manager of GEF India Private Limited (GEF), was thinking about the future. He had drafted a brief (see Exhibit 1) on…
Abstract
The year 2010 was coming to a close, and Kapil, Marketing Manager of GEF India Private Limited (GEF), was thinking about the future. He had drafted a brief (see Exhibit 1) on conducting market research to assess the health of the brand Freedom Refined Sunflower Oil, which GEF had launched in the southern Indian state of Andhra Pradesh (AP) in February of that year.1 Kapil was very happy to note that the brand had achieved good sales, in fact, significantly higher sales than the target set for the launch. This had been achieved thanks to a well-thought-out launch plan that had included considerably more above the line (ATL) marketing expenditure than any of the competing brands in the market. He was interested in finding out whether and where exactly the brand had taken root in the minds of consumers. Another important purpose of the proposed market research was to assess the effectiveness of the launch plan. Above all, he felt it would provide valuable insights when he set out to prepare a marketing plan for the coming year.
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Nombulelo Zulu, Eugenie Kayitesi and Opeolu M. Ogundele
The effect of the addition of red palm olein (RPO) as a natural antioxidant to sunflower (SF) on chemical properties and deep-frying oxidative stability of resultant oil during…
Abstract
Purpose
The effect of the addition of red palm olein (RPO) as a natural antioxidant to sunflower (SF) on chemical properties and deep-frying oxidative stability of resultant oil during storage.
Design/methodology/approach
RPO was added to SF at different levels 0, 5, 10, 15, 20, 25, 50, 75 and 100 (w/w), and potato chips were fried in oil blends repeatedly at 180 °C for 2.5 min for five days to evaluate the effect on chemical properties and oxidative stability.
Findings
The results revealed that linoleic acid and total polar compound (TPC) contents decreased in all RPO and SF resultant oil after five days of storage. Colour significantly (p = 0.05) decreased, while peroxide and iodine values were significantly lowered during storage. The oxidative stability increased significantly in the resultant oil. However, an increase in free fatty acid (FFA) before frying significantly reduced with repeated frying of resultant oil during storage. RPO (5–75%) therefore retards oxidative rancidity in the resultant oil after repeated deep frying and storage.
Originality/value
SF oil is high in polyunsaturated fatty acids but prone to oxidation upon heating and storage. RPO is an important ingredient used in industrial frying rich in phytonutrients and a better replacement to synthetic antioxidants. This study indicated that supplementing SF oil with RPO may be recommended to improve the oxidative stability of oils during frying.
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Outlines some of the reasons behind the development of vegetableoil cheese and critically questions the whole basis and need for suchcheese‐type or substitute products. Evaluates…
Abstract
Outlines some of the reasons behind the development of vegetable oil cheese and critically questions the whole basis and need for such cheese‐type or substitute products. Evaluates two of these new products and compares them with mild and low‐fat Cheddar cheese by using a semi‐trained sensory panel. Finds no significant differences between the appearance of the cheeses but finds differences for texture and flavour. Finds the vegetable oil cheeses to have a flavour similar to mild Cheddar, while the product made with sunflower oil has a soft and crumbly texture compared with that of cheese made from rapeseed oil.
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