Chemical and deep-frying oxidative stability of sunflower–red palm olein blends

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nombulelo Zulu ◽  
Eugenie Kayitesi ◽  
Opeolu M. Ogundele
Keyword(s):  
Oxidative Stability ◽  
Palm Olein ◽  
Chemical Properties ◽  
Deep Frying ◽  
Important Ingredient ◽  
Content Type ◽  
Oil Blends ◽  
Red Palm Olein ◽  
And Storage ◽  
Different Levels

PurposeThe 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/approachRPO 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.FindingsThe 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/valueSF 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.

Asparagus racemosus

2017 ◽  
Vol 47 (5) ◽  
pp. 673-687 ◽  
Author(s):  
Sabahu Noor ◽  
Z.F. Bhat ◽  
Sunil Kumar ◽  
Insha Kousar
Keyword(s):  
Oxidative Stability ◽  
Meat Product ◽  
Meat Products ◽  
Thiobarbituric Acid ◽  
Plate Count ◽  
Asparagus Racemosus ◽  
Storage Quality ◽  
Content Type ◽  
Natural Preservative ◽  
And Storage

Purpose This paper aims to explore the possibility of utilization of Asparagus racemosus as a novel natural preservative in meat products. Design/methodology/approach Chevon sausages were used as a study model and prepared by incorporating different levels of A. racemosus, namely, T1 (0.25 per cent), T2 (0.50 per cent) and T3 (0.75 per cent) and were vacuum packaged and assessed for various lipid oxidative stability and storage quality parameters under refrigerated (4  ±  1°C) conditions. Findings Significantly (p < 0.05) lower thiobarbituric acid reacting substances (mg malonaldehyde/kg) values were observed for the products containing A. racemosus in comparison to control indicating a significant effect on the lipid oxidative stability. The products containing A. racemosus also showed significantly (p < 0.05) lower values for various microbiological characteristics like total plate count (log cfu/g), psychrophilic count (log cfu/g), yeast and mould count (log cfu/g), anaerobic count (log cfu/g) and free fatty acid (% oleic acid) values indicating the antimicrobial and antifungal properties of A. racemosus. No significant (p > 0.05) effect was observed on the cooking yield and moisture content of the products. Significantly (p < 0.05) higher scores were observed for various sensory parameters of the products containing A. racemosus during the entire period of storage. Originality/value A. racemosus successfully improved the lipid oxidative stability and storage quality of the model meat product without compromising the sensorial characteristics and has a great potential as a novel natural preservative in muscle foods.

Effect of Bacopa monnieri extracts on storage quality of chicken nuggets at refrigeration temperature (4 ± 1°C)

2017 ◽  
Vol 47 (1) ◽  
pp. 78-88 ◽  
Author(s):  
Tanuj K. Tanwar ◽  
Arvind Kumar ◽  
Nrip K. Pankaj
Keyword(s):  
Oxidative Stability ◽  
Shelf Life ◽  
Meat Products ◽  
Bacopa Monnieri ◽  
Refrigerated Storage ◽  
Chicken Nuggets ◽  
Storage Quality ◽  
Content Type ◽  
And Storage

Purpose The purpose of this paper was to explore the antioxidant and antimicrobial properties of locally available herbs, namely, Bacopa monnieri in enhancing the shelf life of chicken nuggets. Design/methodology/approach Meat products are highly vulnerable to spoilage due to their excessive fats and protein content. Therefore, chicken nuggets incorporated with 1, 2 and 3 per cent Bacopa monnieri extracts and control chicken nuggets, were studied to explore the potency of this locally available herb on oxidative stability and storage quality of chicken nuggets on the 0,7th,14th and the 21st day at the refrigerated storage (4 ± 1°C). Findings Extracts of Bacopa monnieri were prepared and optimally incorporated in the chicken nuggets. Chicken nuggets prepared with 2 per cent of Bacopa monnieri were adjudged as the best among all based on sensory attributes. Extracts of Bacopa monnieri-incorporated nuggets were safe for consumption until 21 days of refrigerated storage (4 ± 1°C), based upon the power of hydrogen (pH), free fatty acid (FFA), thiobarbituric acid reactive substances (TBARS), microbiological profile and sensory evaluation of the chicken nuggets. Practical implications Two per cent of Bacopa monnieri extracts’ incorporation in the chicken nuggets successfully improved the oxidative stability and storage quality of chicken nuggets and, therefore, can be commercially exploited. Social implications The Bacopa monnieri herb is commonly available in the Jammu region of Jammu and Kashmir state in the Indian Republic; hence, it can be used in its extract form in meat products, to make the products function with enhanced shelf life. Originality/value The addition of 2 per cent extracts of Bacopa monnieri in the chicken nuggets successfully improved the oxidative stability and its storage quality during the refrigerated (4 ± 1°C) storage. Therefore, it can be commercially exploited to improve the storage quality for longer duration of the meat food without adversely affecting the sensory quality of the products.

scholarly journals Oxidative Stability of Refined Red Palm Olein under two Malaysian Storage Conditions

2020 ◽  
Vol 69 (10) ◽  
pp. 1209-1218
Author(s):  
Bonnie Tay Yen Ping ◽  
Che Anishas Che Idris ◽  
Zulina Abd Maurad
Keyword(s):  
Oxidative Stability ◽  
Palm Olein ◽  
Storage Conditions ◽  
Red Palm Olein

scholarly journals Physico-Chemical Characteristics and Lipid Oxidative Stability of Zebra (Equus Burchelli) Droëwors Made Using Different Levels of Sheep Fat

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2497
Author(s):  
Zikhona Mandela ◽  
Elodie Arnaud ◽  
Louwrens C. Hoffman
Keyword(s):  
Weight Loss ◽  
Relative Humidity ◽  
Oxidative Stability ◽  
Salt Content ◽  
Chemical Properties ◽  
Chemical Characteristics ◽  
Equus Burchelli ◽  
Physico Chemical ◽  
Tbars Values ◽  
Different Levels

The physico-chemical properties (proximate, salt content, water activity (aw), pH) and lipid oxidation of droëwors (dried salted/spiced meat sausages) produced with zebra meat and different sheep fat levels (10, 15, and 20% by weight) measured at day 0 (before drying), day 2 (after drying at 30 °C and 40% relative humidity), and over a 90 day storage (day 17, 32, 47, 62, 77, and 92) under vacuum at 25 °C were investigated. The use of lower fat levels (10 and 15%) in the formulation resulted in higher weight loss during drying and droëwors with higher protein, ash, and salt content and lower aw and pH compared to the droëwors made with 20% fat. The pH increased (p < 0.001) during storage for all the fat levels, while the moisture content and the aw were stable as expected. TBARS values were the highest in droëwors made with 20% of fat after drying (day 2), but droëwors made with 10% of fat reached similar maximal values on day 17. Formulations containing 15% sheep fat displayed the lowest TBARS values after drying and along storage, and thus had the best characteristics in relation to oxidative stability.

Preservative potential of Tinospora cordifolia, a novel natural ingredient for improved lipid oxidative stability and storage quality of chevon sausages

2018 ◽  
Vol 48 (4) ◽  
pp. 605-620 ◽  
Author(s):  
Insha Kousar Kalem ◽  
Z.F. Bhat ◽  
Sunil Kumar ◽  
Reshan Mudiyanselage Jayawardena
Keyword(s):  
Oxidative Stability ◽  
Meat Product ◽  
Thiobarbituric Acid ◽  
Tinospora Cordifolia ◽  
Plate Count ◽  
Storage Quality ◽  
Content Type ◽  
Muscle Foods ◽  
Microbial Stability ◽  
And Storage

Purpose The purpose of this study was to assess the preservative potential of Tinospora cordifolia as a novel natural preservative in muscle foods. Design/methodology/approach Chevon sausages were used as a model system and were prepared by incorporating different levels of T. cordifolia, namely, T1 (0.25 per cent), T2 (0.50 per cent) and T3 (0.75 per cent), and assessed for lipid oxidative stability and storage quality under refrigerated (4 ± 10°C) conditions. Findings Lipid oxidative stability showed a significant improvement as the products incorporated with T. cordifolia exhibited significantly (p = 0.001) lower thiobarbituric acid reacting substances (mg malonaldehyde/kg) in comparison to control. A significant improvement was also observed in the microbial stability as T. cordifolia-incorporated products showed significantly lower values for total plate count (log cfu/g, p = 0.001), psychrophilic count (log cfu/g, p = 0.003), yeast and mould count (log cfu/g, p = 0.02) and free fatty acid (percentage of oleic acid, p = 0.01). Significantly higher scores were observed for various sensory parameters of the treated products during storage. Originality/value Tinospora cordifolia successfully improved the lipid oxidative and microbial stability of the model meat product and may be commercially exploited as a novel preservative in muscle foods.

scholarly journals Applying additivity rule to determine physico-chemical properties of edible oil blends based on known parameters of component oils

2021 ◽  
Vol 126 (1) ◽  
pp. 133-149
Author(s):  
Lucyna Dymińska ◽  
Abduladhim Moamer Albegar ◽  
Adam Zając ◽  
Tadeusz Czuj ◽  
Wojciech Sąsiadek ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Deep Frying ◽  
Chemical Parameters ◽  
Plant Oil ◽  
Oil Blends ◽  
Physico Chemical ◽  
Expected Performance ◽  
Input Dataset ◽  
And Performance ◽  
Oil Blend

In the paper, a procedure was suggested for making plant oil blends of desirable physico-chemical and performance parameters. There was applied a rule of additivity of parameters of component oils in the blend to get oil products with modified nutritional characteristics. The other objective of the research study was to test the usefulness of the procedure when projecting thermal properties of the blends for deep frying. To make oil blends, plant oils were used that were produced by Oleofarm Ltd. The oil blends were analysed using chromatographic and spectroscopic methods. Their chemical parameters constituted an input dataset to make blends of expected performance properties. It was shown experimentally that it was possible to theoretically project physico-chemical and thermal parameters of the final oil blend. When knowing the chemical parameters of individual blend-forming oils, it is possible to employ them to determine the parameters of the final blend. There were suggested oil compositions for the preparation of advantageous blends to be used for deep frying and salad dressings. Thus there was confirmed the purposefulness of blending the oils in order to make a product the qualities of which could be geared to the specific utility purposes.

Ipomoea batatas as a novel binding agent for hot-set restructured binding systems and green coffee bean for improved lipid oxidative stability and storage quality

2017 ◽  
Vol 47 (5) ◽  
pp. 659-672
Author(s):  
H.M. Dilnawaz ◽  
Sunil Kumar ◽  
Z.F. Bhat
Keyword(s):  
Oxidative Stability ◽  
Ipomoea Batatas ◽  
Meat Products ◽  
Quality Parameters ◽  
Coffee Bean ◽  
Binding Agent ◽  
Storage Quality ◽  
Content Type ◽  
And Storage ◽  
Green Coffee Bean

Purpose This paper aims to to explore the possibility of utilization of Ipomoea batatas as a novel binding agent for hot-set restructured meat products. Further, green coffee bean (GCB) extract was used as a natural ingredient to improve the lipid oxidative stability and storage quality of the developed restructured mutton blocks. Design/methodology/approach Restructured mutton blocks were used as a model and were prepared by incorporating different levels of I. batatas, namely, 1, 3 and 5 per cent and analyzed for various quality parameters. Restructured mutton blocks containing optimum level of I. batatas were further treated with GCB (1 per cent) extract as a natural ingredient and assessed for various lipid oxidative stability and storage quality parameters under refrigerated conditions (4 ± 1°C). Findings Restructured mutton blocks containing 3 per cent level of I. batatas were optimized as best on the basis of various quality parameters. Although a significant declining trend was observed in the sensory characteristics with storage; however, the products containing GCB extract showed significantly (p < 0.05) higher acceptability. The mean scores for overall acceptability for products with GCB extract on day 0 was 7.4 ± 0.1 and for control was 7.3 ± <0.1. Significantly (p < 0.05) lower thiobarbituric acid reacting substances (TBARS, mg malonaldehyde/kg) and free fatty acid (FFA, % oleic acid) values were observed for the products containing GCB extract. The mean TBARS and FFA values for products with GCB extract on day 0 were 0.2 ± <0.1 and 0.08 ± <0.1 and for control were 0.3 ± <0.1 and 0.09 ± <0.1, respectively. The restructured mutton blocks containing GCB extract also showed significantly (p < 0.05) lower values for various microbiological characteristics like total plate count (log cfu/g) and psychrophilic count (log cfu/g). Originality/value The results showed herein indicate a promising industrial application of I. batatas (3 per cent) as a binding agent for restructured meat products and GCB extract (1 per cent) as a novel natural ingredient for improved lipid oxidative stability and storage quality.

Flavor and Storage Stability of Potato Chips Fried in Cottonseed and Sunflower Oils and Palm Olein/Sunflower Oil Blends

2002 ◽  
Vol 67 (1) ◽  
pp. 97-103 ◽  
Author(s):  
P. Pangloli ◽  
S.L. Melton ◽  
J.L. Collins ◽  
M.P. Penfield ◽  
A.M. Saxton
Keyword(s):  
Sunflower Oil ◽  
Palm Olein ◽  
Storage Stability ◽  
Potato Chips ◽  
Oil Blends ◽  
Sunflower Oils ◽  
And Storage
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