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Lu X, Gao P, Lv Y, Zhang Y, Wang F. Comparison of chemical compositions and aroma characteristics of walnut oil prepared by different roasting processes. J Food Sci 2024; 89:4884-4898. [PMID: 39004805 DOI: 10.1111/1750-3841.17186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/08/2024] [Accepted: 06/10/2024] [Indexed: 07/16/2024]
Abstract
Walnut oil is an edible oil with high nutritional value, and the roasting process influences its quality and flavor. This study aimed to investigate the effects of roasting on the fatty acid composition, bioactive compounds (tocopherols, polyphenols, and phytosterols), and antioxidant capacity of walnut oil. Additionally, the aroma compounds and sensory characteristics were evaluated to comprehensively assess the variations in walnut oil after roasting. Roasting resulted in no notable impact on the fatty acid composition of walnut oil but increased the content of tocopherols and polyphenols in walnut oil, increasing its antioxidant capacity. Heavy roasting (160°C/20 min) reduced the phytosterol content in walnut oil by 2.3%. In total, 146 volatile compounds were detected in both cold-pressed and roasted walnut oil using headspace solid-phase microextraction-gas chromatography-mass spectrometry, and 32 key aroma compounds were identified. Aromatic aldehydes, aliphatic aldehydes, and heterocyclic compounds significantly contributed to fragrant walnut oil. Furthermore, the principal component analysis based on quality characteristics and sensory evaluation indicated that moderate roasting (130°C/20 min, 130°C/30 min, and 160°C/10 min) provided walnut oil with a sweet, nutty, and roasted aroma, as well as high levels of linoleic acid, phytosterols, and γ-tocopherol. Although heavy roasting (160°C/15 min and 160°C/20 min) enhanced the antioxidant capacities of walnut oils due to high levels of polyphenols, the oils exhibited an unpleasant burnt aroma. This study showed that roasting promoted the quality and flavor of walnut oil, and moderate conditions endowed walnut oil with a characteristic-rich flavor while maintaining excellent quality.
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Affiliation(s)
- Xinzhu Lu
- National Key Laboratory for Efficient Production of Forest Resources, Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, P. R. China
| | - Peng Gao
- National Key Laboratory for Efficient Production of Forest Resources, Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, P. R. China
| | - Yaru Lv
- National Key Laboratory for Efficient Production of Forest Resources, Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, P. R. China
| | - Yu Zhang
- National Key Laboratory for Efficient Production of Forest Resources, Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, P. R. China
| | - Fengjun Wang
- National Key Laboratory for Efficient Production of Forest Resources, Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, P. R. China
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2
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Yoon S, Jeong H, Hong SJ, Jo SM, Park H, Ban Y, Youn MY, Shin EC. Oven-Roasting Effects the Fatty Acid Composition, Antioxidant Properties, and Oxidative Stability of Pomegranate ( Punica granatum L.) Seed Oil. Prev Nutr Food Sci 2024; 29:190-198. [PMID: 38974588 PMCID: PMC11223916 DOI: 10.3746/pnf.2024.29.2.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 07/09/2024] Open
Abstract
In this study, we investigated the effect of roasting conditions and time on the physicochemical properties of pomegranate seed oil. We analyzed the fatty acid, total phenolic, flavonoid, tocopherol, and phytosterol contents of pomegranate seed oil extracted under four conditions: raw, heated at 160°C for 15 min, heated at 160°C for 20 min, and heated at 180°C for 10 min, which included three that were well-established to enhance nutritional and flavor properties. Furthermore, the oxidative stability was evaluated based on the acid value, peroxide value, and induction period. Roasting significantly decreased the contents of punicic acid, polyunsaturated fatty acids, tocopherol, and phytosterol and the 2,2-diphenyl-1-picrylhydrazyl radical scavenging capacity (P<0.05) of the oil. Conversely, saturated fatty acids, monounsaturated fatty acids, acid value, peroxide value, total phenolic and flavonoid contents, and induction period were significantly increased (P<0.05). Our results suggest that the roasting conditions were nutritionally and oxidatively stable, thereby enhancing the roasting process and providing a database for essential roasting treatments for pomegranate seed oil.
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Affiliation(s)
- Sojeong Yoon
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Hyangyeon Jeong
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Seong Jun Hong
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Seong Min Jo
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Hyunjin Park
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Younglan Ban
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Moon Yeon Youn
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
| | - Eui-Cheol Shin
- Department of GreenBio Science/Food Science and Technology, Gyeongsang National University, Gyeongnam 52725, Korea
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3
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El Maouardi M, Kharbach M, Cherrah Y, De Braekeleer K, Bouklouze A, Vander Heyden Y. Quality Control and Authentication of Argan Oils: Application of Advanced Analytical Techniques. Molecules 2023; 28:molecules28041818. [PMID: 36838806 PMCID: PMC9966767 DOI: 10.3390/molecules28041818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
In addition to the nutritional and therapeutic benefits, Argan oil is praised for its unique bio-ecological and botanic interest. It has been used for centuries to treat cardiovascular issues, diabetes, and skin infections, as well as for its anti-inflammatory and antiproliferative properties. Argan oil is widely commercialized as a result of these characteristics. However, falsifiers deliberately blend Argan oil with cheaper vegetable oils to make economic profits. This reduces the quality and might result in health issues for consumers. Analytical techniques that are rapid, precise, and accurate are employed to monitor its quality, safety, and authenticity. This review provides a comprehensive overview of studies on the quality assessment of Moroccan Argan oil using both untargeted and targeted approaches. To extract relevant information on quality and adulteration, the analytical data are coupled with chemometric techniques.
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Affiliation(s)
- Meryeme El Maouardi
- Biopharmaceutical and Toxicological Analysis Research Team, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V, Rabat 10100, Morocco
- Department of Analytical Chemistry, Applied Chemometrics and Molecular Modelling, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Mourad Kharbach
- Research Unit of Mathematical Sciences, University of Oulu, 90014 Oulu, Finland
| | - Yahya Cherrah
- Biopharmaceutical and Toxicological Analysis Research Team, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V, Rabat 10100, Morocco
| | - Kris De Braekeleer
- Pharmacognosy, Bioanalysis & Drug Discovery Unit, Faculty of Pharmacy, University Libre Brussels, 1050 Brussels, Belgium
| | - Abdelaziz Bouklouze
- Biopharmaceutical and Toxicological Analysis Research Team, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V, Rabat 10100, Morocco
| | - Yvan Vander Heyden
- Department of Analytical Chemistry, Applied Chemometrics and Molecular Modelling, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
- Correspondence:
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4
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Kabous KE, Atfaoui K, Oubihi A, Hamoutou S, Ouhssine M. The Study of the Heterogeneity of the Qualities of Argan Oils and Pomaces from Different Cooperatives in the Essaouira Region (Morocco). J Oleo Sci 2023; 72:283-293. [PMID: 36878582 DOI: 10.5650/jos.ess22222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
In this study, a comparison of the intra-regional variation in the quality of Argan oil and pomace collected from 12 cooperatives in the Essaouira region (Morocco) during the COVID-19 period was carried out. All studied Argan pomaces together with the extraction solvents showed a significant difference (p ≤ 0.05) in the total phenolic compounds, flavonoids, and tannins contents. The proteins, residual oils, total sugars, and total reducing sugars contents in the collected pomaces vary considerably among cooperatives of origin, with maximum averages of 50.45%; 30.05%; 3.82 milligrams of glucose equivalent per gram of dry matter; and 0.53 milligrams of glucose equivalent per gram of dry matter, respectively. Therefore, it is a very valuable ingredient for livestock feed and some cosmetic products that may contain it. The remaining Argan oil content in the pomace varied significantly among cooperatives, ranging from 8.74 to 30.05%. Pomace from traditional extraction recorded the highest content (30.05%), showing that the artisanal and modern extraction processes are not standardized. The measurements of acidity, peroxide value, specific extinction coefficient at 232 nm and 270 nm, and conjugated dienes were carried out in accordance with Moroccan Standard 08.5.090 in order to qualitatively classify all investigated Argan oils. Accordingly, the analyzed oils were categorized as "extra virgin Argan oil," "fine virgin Argan oil," "ordinary virgin Argan oil," and "lampante virgin Argan oil." Therefore, several factors can explain these variations in quality grades, both endogenous and exogenous. Overall, the variation observed in the obtained result allows us to deduce the most significant variables impacting the quality of Argan products and by-products.
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Affiliation(s)
- Karima El Kabous
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Khadija Atfaoui
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Asmaa Oubihi
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Souad Hamoutou
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Mohammed Ouhssine
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
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Gharby S, Oubannin S, Ait Bouzid H, Bijla L, Ibourki M, Gagour J, Koubachi J, Sakar EH, Majourhat K, Lee LH, Harhar H, Bouyahya A. An Overview on the Use of Extracts from Medicinal and Aromatic Plants to Improve Nutritional Value and Oxidative Stability of Vegetable Oils. Foods 2022; 11:3258. [PMID: 37431007 PMCID: PMC9601662 DOI: 10.3390/foods11203258] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 07/30/2023] Open
Abstract
Oil oxidation is the main factor limiting vegetable oils' quality during storage, as it leads to the deterioration of oil's nutritional quality and gives rise to disagreeable flavors. These changes make fat-containing foods less acceptable to consumers. To deal with this problem and to meet consumer demand for natural foods, vegetable oil fabricators and the food industry are looking for alternatives to synthetic antioxidants to protect oils from oxidation. In this context, natural antioxidant compounds extracted from different parts (leaves, roots, flowers, and seeds) of medicinal and aromatic plants (MAPs) could be used as a promising and sustainable solution to protect consumers' health. The objective of this review was to compile published literature regarding the extraction of bioactive compounds from MAPs as well as different methods of vegetable oils enrichment. In fact, this review uses a multidisciplinary approach and offers an updated overview of the technological, sustainability, chemical and safety aspects related to the protection of oils.
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Affiliation(s)
- Saïd Gharby
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Samira Oubannin
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Hasna Ait Bouzid
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Laila Bijla
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Mohamed Ibourki
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco
| | - Jamila Gagour
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Jamal Koubachi
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - El Hassan Sakar
- Laboratory of Biology, Ecology and Health, FS, Abdelmalek Essaadi University, Tetouan 93002, Morocco
| | - Khalid Majourhat
- Biotechnology, Analytical Sciences and Quality Control Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Learn-Han Lee
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbiome and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Subang Jaya 47500, Selangor, Malaysia
| | - Hicham Harhar
- Laboratory of Materials, Nanotechnology and Environment LMNE, Mohammed V University in Rabat, Rabat 10100, Morocco
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Genomic Center of Human Pathologies, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10100, Morocco
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Keawkim K, Na Jom K. Metabolomics and flavoromics analysis of chemical constituent changes during roasting of germinated Sacha inchi (Plukenetia volubilis L.). Food Chem X 2022; 15:100399. [PMID: 36211732 PMCID: PMC9532733 DOI: 10.1016/j.fochx.2022.100399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 06/25/2022] [Accepted: 07/19/2022] [Indexed: 11/21/2022] Open
Abstract
Roasting of germinated Sacha inchi improved the amino acids content. Roasting decrease reducing sugars and phytosterols. Roasting enhanced FAME levels in germinated seeds.
This study examined the changes in metabolites together with the flavor profiles of germinated Sacha inchi seeds during roasting by using gas chromatography. The results indicated that roasting partially increased the browning index, amino acid levels, total phenolic content, and antioxidant capacity, but slightly decreased the levels of reducing sugars. Oxidized and rancid compounds were significantly decreased at a 180 °C roasting temperature. Pyrazine, furan, and pyrrole were Maillard reaction products that were increased at 180 °C of roasting. Roasting at 145 °C for 45 min after germination for 4 days was determined to be the optimal conditions for roasting germinated Sacha inchi seeds, which reduced the off-flavor and burned taste. The roasted germinated Sacha inchi seed contains higher amino acids than raw seed, which could be used as an alternative source for food products and supplements. In addition, the roasted germinated seeds at 4 days were recommended for food applications.
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7
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Tan M, Chen C, Fu X, Cui FJ, Zhang HB, Ye PP, Zhang W, Shu XQ, Shi JC, Chen ZW. Roasting Treatments Affect Physicochemical, Aroma and Nutritional Quality of Strong Fragrant Rapeseed Oil. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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An J, Adelina NM, Zhang L, Zhao Y. Effect of roasting pre‐treatment of two grafted pine nuts (
Pinus koraiensis
) on yield, color, chemical compositions, antioxidant activity, and oxidative stability of the oil. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jiayi An
- Department of Food Science School of Forestry Northeast Forestry University Harbin People’s Republic of China
| | - Nadya Mara Adelina
- Department of Food Science School of Forestry Northeast Forestry University Harbin People’s Republic of China
| | - Ligang Zhang
- College of Food Science Northeast Agricultural University Harbin People’s Republic of China
| | - Yuhong Zhao
- Department of Food Science School of Forestry Northeast Forestry University Harbin People’s Republic of China
- Key Laboratory of Forest Food Resources Utilization of Heilongjiang Province Harbin People’s Republic of China
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9
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Zhang Y, Li X, Lu X, Sun H, Wang F. Effect of oilseed roasting on the quality, flavor and safety of oil: A comprehensive review. Food Res Int 2021; 150:110791. [PMID: 34865806 DOI: 10.1016/j.foodres.2021.110791] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/19/2021] [Accepted: 10/24/2021] [Indexed: 11/28/2022]
Abstract
Roasting is widely applied in oil processing and employs high temperatures (90-260 °C) to heat oilseeds evenly. Roasting improves the extraction yield of oil by the generation of pores in the oilseed cell walls, which facilitates the movement of oil from oilseed during subsequent extraction. It also affects the nutritional value and palatability of the prepared oil, which has attracted consumers' attention. An appropriate roasting process contributes to better extraction of bioactive compounds, particularly increasing the total polyphenol content in the oil. Correspondingly, extracted oil exhibits higher antioxidant capacity and oxidative stability after roasting the oilseeds due to better extraction of endogenous antioxidants and the generation of Maillard reaction products. Furthermore, roasting process is critical for the formation of aroma-active volatiles and the improvement of desired sensory characteristics, so it is indispensable for the production of fragrant oil. However, some harmful components are inevitably generated during roasting, including oxidation products, polycyclic aromatic hydrocarbons, and acrylamide. Monitoring and controlling the concentrations of harmful compounds in the oil during the roasting process is important. Therefore, this review updates how roasting affect the quality and safety of oils and provides useful insight into regulation of the roasting process based on bioactive compounds, sensory characteristics, and safety of oils. Further research is required to assess the nutritional value and safety of roasted oils in vivo and to develop a customized roasting process for various oilseeds to produce good-quality oils.
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Affiliation(s)
- Yu Zhang
- Department of Food Science and Engineering, College of Biological Sciences and Biotechnology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Xiaolong Li
- COFCO Nutrition & Health Research Institute, No.4 Road, Future Science and Technology Park South, Beiqijia, Changping, Beijing 102209, PR China
| | - Xinzhu Lu
- Department of Food Science and Engineering, College of Biological Sciences and Biotechnology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Hao Sun
- Department of Food Science and Engineering, College of Biological Sciences and Biotechnology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Fengjun Wang
- Department of Food Science and Engineering, College of Biological Sciences and Biotechnology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, PR China.
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Mouahid A, Bombarda I, Claeys-Bruno M, Amat S, Myotte E, Nisteron JP, Crampon C, Badens E. Supercritical CO2 extraction of Moroccan argan (Argania spinosa L.) oil: Extraction kinetics and solubility determination. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101458] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Kharbach M, Marmouzi I, Kamal R, Yu H, Barra I, Cherrah Y, Alaoui K, Heyden YV, Bouklouze A. Extra virgin Argan oils’ shelf-life monitoring and prediction based on chemical properties or FTIR fingerprints and chemometrics. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107607] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Demnati D, Pacheco R, Martínez L, Sánchez S. Optimum roasting conditions of argan kernels ( Argania spinosa L.) for the production of high-quality edible argan oil. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2020; 57:840-847. [PMID: 32123404 DOI: 10.1007/s13197-019-04115-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/26/2019] [Accepted: 09/26/2019] [Indexed: 10/25/2022]
Abstract
Roasting is an important step in the production of edible argan oils. The effect of argan kernel roasting temperature (ranging from 150 to 200 °C) and time (from 10 to 50 min), on oil yield, contents in total phenolic compounds, α- and γ-tocopherol, and oxidative stability, was researched using response surface methodology. Increases in roasting temperature and time have a significant effect on all the responses. This study showed that the optimum roasting conditions of argan kernel (indirect heat by convection) for the production of edible argan oils were 150 °C and 50 min, which allowed reaching a maximum oil yield of 32.45%. Edible argan oil, obtained under these conditions, had a content of total phenolic compounds of 78.01 mg/kg, α- and γ-tocopherol of 30.28 and 495.03 mg/kg, respectively, and an oxidative stability of 37.58 h. Furthermore, it presented olfactory notes of 'almond, dried fruits, hazelnut and waffle', with 'sweet' and 'fruity' as positive attributes, without any defect.
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Affiliation(s)
- Dalila Demnati
- 1Department of Chemical, Environmental and Materials Engineering, University of Jaén, Jaén, 23071 Spain
| | - Rafael Pacheco
- 1Department of Chemical, Environmental and Materials Engineering, University of Jaén, Jaén, 23071 Spain
| | - Leopoldo Martínez
- 2Department of Chemical Engineering, University of Granada, Granada, 18071 Spain
| | - Sebastián Sánchez
- 1Department of Chemical, Environmental and Materials Engineering, University of Jaén, Jaén, 23071 Spain
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13
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Impact of infrared and dry air roasting on the oxidative stability, fatty acid composition, Maillard reaction products and other chemical properties of black cumin (Nigella sativa L.) seed oil. Food Chem 2019; 295:537-547. [DOI: 10.1016/j.foodchem.2019.05.140] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/30/2019] [Accepted: 05/21/2019] [Indexed: 11/17/2022]
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14
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Goik U, Goik T, Załęska I. The Properties and Application of Argan Oil in Cosmetology. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201800313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Urszula Goik
- Faculty of Food TechnologyUniversity of Agriculture in Krakow33‐332 KrakowPoland
| | - Tomasz Goik
- Faculty of Mechanical EngineeringKrakow University of Technology31‐155 KrakowPoland
| | - Izabela Załęska
- The Section of Professional CosmetologyThe Faculty of Motor RehabilitationUniversity of Physical Education in Krakow31‐571 KrakowPoland
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