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Journals / Turkish Journal of Agriculture and Forestry / 2014 / Cilt: 38 - Sayı: 6

A response surface methodology study on the effects of some phenolics and storage period length on vegetable oil quality: change in oxidation stability parameters

Safa KARAMAN
Ömer Said TOKER
İsmet ÖZTÜRK
Hasan YALÇIN
Pages
759–772
Publication Date
2014-06-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The addition of gallic acid significantly retarded oxidation (P < 0.05), and in general gallic acid and quercetin were found to be effective for preserving oil against oxidation.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In the present study, response surface methodology was conducted for the determination of effects of some phenolics (gallic acid, ellagic acid, and quercetin) on some stability parameters of mixed oil prepared with sunflower and hazelnut oils (50:50, v/v).
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Key Findings & Data:Predictive regression equations were constructed for the estimation of each studied parameter (R2 > 0.861).
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Conclusion & Impact:The addition of gallic acid significantly retarded oxidation (P < 0.05), and in general gallic acid and quercetin were found to be effective for preserving oil against oxidation.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Vegetable oil · phenolics · storage

Abstract

In the present study, response surface methodology was conducted for the determination of effects of some phenolics (gallic acid, ellagic acid, and quercetin) on some stability parameters of mixed oil prepared with sunflower and hazelnut oils (50:50, v/v). In this respect, peroxide value (PV), free fatty acids (FFAs), p-anisidine value, induction period, and refractive index of mixed oil were investigated. Predictive regression equations were constructed for the estimation of each studied parameter (R2 > 0.861). The storage period caused a significant increase in the peroxide value, FFAs, p-anisidine, and refractive index values of the mixed oil, while it decreased the induction period value of oil (P < 0.01). The addition of gallic acid significantly retarded oxidation (P < 0.05), and in general gallic acid and quercetin were found to be effective for preserving oil against oxidation.

Özet

In the present study, response surface methodology was conducted for the determination of effects of some phenolics (gallic acid, ellagic acid, and quercetin) on some stability parameters of mixed oil prepared with sunflower and hazelnut oils (50:50, v/v). In this respect, peroxide value (PV), free fatty acids (FFAs), p-anisidine value, induction period, and refractive index of mixed oil were investigated. Predictive regression equations were constructed for the estimation of each studied parameter (R2 > 0.861). The storage period caused a significant increase in the peroxide value, FFAs, p-anisidine, and refractive index values of the mixed oil, while it decreased the induction period value of oil (P < 0.01). The addition of gallic acid significantly retarded oxidation (P < 0.05), and in general gallic acid and quercetin were found to be effective for preserving oil against oxidation.

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Cite This Article

KARAMAN, S., TOKER, Ö. S., ÖZTÜRK, İ., YALÇIN, H. (2014). A response surface methodology study on the effects of some phenolics and storage period length on vegetable oil quality: change in oxidation stability parameters. Turkish Journal of Agriculture and Forestry, Cilt: 38 - Sayı: 6, 759–772. https://ajindex.com/articles/179683

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References (12)

  1. Ahn JH, Kim YP, Seo EM, Choi YK, Kim HS (2008). Antioxidant effect of natural plant extracts on the microencapsulated high oleic sunflower oil. J Food Eng 84: 327–334.
  2. Akhtar P, Asghar A, Sheikh AS (1985). Effect of proxy radical scavengers on fluorescent light induced oxidation in some edible oils. J Pure Appl Sci 4: 1–7.
  3. Armando C, Maythe S, Beatriz, NP (1998). Antioxidant activity of grapefruit seed extract on vegetable oils. J Sci Food and Agric 77: 463–467.
  4. AOAC (2000). OfŞcial Methods of Analysis of AOAC International. 17th ed. Washington, DC, USA: Association of Official Analytical Chemists. Box GEP, Draper NR (1987). Empirical Model-Building and Response Surfaces. New York, NY, USA: Wiley. Chung HF, Colakoglu AS, Min DB (2004). Relationship among headspace oxygen, peroxide value and conjugated diene content of soybean oil oxidation. J Food Sci 69: 83–88.
  5. Colakoglu AS (2007). Oxidation kinetics of soybean oil in the presence of monoolein, stearic acid and iron. Food Chem 101: 724–728.
  6. Cook NC, Samman S (1996). Flavonoids—Chemistry, metabolism, cardioprotective effects, and dietary sources. J Nutr Biochem 7: 66–76.
  7. Crapiste GH, Brevedan MIV, Carelli AA (1999). Oxidation of sunflower oil during storage. J Am Oil Chem Soc 76: 1437– 1443. Freeman BL, Eggett DL, Parker TL (2010). Synergistic and antagonistic interactions of phenolic compounds found in navel oranges. J Food Sci 75: C570–C576. Goli AH, Barzegar M, Sahari MA (2005). Antioxidant activity and total phenolic compounds of pistachio (Pistachia vera) hull extracts. Food Chem 92: 521–525.
  8. Erkan N, Ayranci G, Ayranci E (2009). A kinetic study of oxidation development in sunflower oil under microwave heating: effect of natural antioxidants. Food Res Int 42: 1171–1177.
  9. Farag RS, Mahmoud EA, Basuny AM (2007). Use of crude olive leaf juice as a natural antioxidant for the stability of sunflower oil during the heating. Int J Food Sci Technol 42: 107–115.
  10. Halliwell B, Murcia MA, Chirico S, Aruoma OI (1995). Free radicals and antioxidants in food and in vivo: what they do and how they work. Critical Rev Food Sci Nutr 35: 7–20.
  11. IUPAC (1992). Standard Methods for the Analysis of Oils, Fats and Derivatives. 7th ed. Oxford, UK: Blackwell. Jeong SM, Kuo SYD, Kim RS, Jo C, Nam KC, Ahn DU (2004). Effect of heat treatment on the antioxidant activity of extracts from citrus peels. J Agric Food Chem 52: 3389–3393.
  12. Johnson OC, Kummerow FA (1957). Chemical changes which take place in an edible oil during thermal oxid