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Khallouki F, Zennouhi W, Hajji L, Bourhia M, Benbacer L, El Bouhali B, Rezig L, Poirot M, Lizard G. Current advances in phytosterol free forms and esters: Classification, biosynthesis, chemistry, and detection. Steroids 2024:109520. [PMID: 39378976 DOI: 10.1016/j.steroids.2024.109520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 10/04/2024] [Accepted: 10/04/2024] [Indexed: 10/10/2024]
Abstract
Phytosterols are plant sterols that are important secondary plant metabolites with significant pharmacological properties. Their presence in the plant kingdom concerns many unrelated botanical families such as oleageneous plants and cereals. The structures of phytosterols evoke those of cholesterol. These molecules are composed of a sterane ring, also known as perhydrocyclopentanophenanthrene, along with a methyl or ethyl group at C-24 in their side chains, a hydroxyl group at C-3 on ring A, and one or two double bonds in the B ring. Phytosterols display different oxidation degrees at the sterane ring and at the side chain as well as varying numbers of carbons with complex stereochemistries. Fats and water solubilities of phytosterols have been achieved by physical, chemical and enzymatic esterifications to favor their bioavailability and to improve the sensory quality of food, and the efficiency of pharmaceutic and cosmetic products. This review aims to provide comprehensive information starting from the definition and structural classification of phytosterols, and exposes an update of their biogenic relationships. Next, the synthesis of phytosterol esters and their applications as well as their effective roles as hormone precursors are discussed. Finally, a concise exploration of the latest advancements in phytosterol / oxyphytosterols analysis techniques is provided, with a particular focus on modern hyphenated techniques.
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Affiliation(s)
- Farid Khallouki
- Team of Ethnopharmacology and Pharmacognosy, Department of Biology, FSTE, Moulay Ismail University of Meknes, BP 609, 52000 Errachidia, Morocco.
| | - Wafa Zennouhi
- Team of Ethnopharmacology and Pharmacognosy, Department of Biology, FSTE, Moulay Ismail University of Meknes, BP 609, 52000 Errachidia, Morocco
| | - Lhoussain Hajji
- Department of Biology, FSM, Moulay Ismail University of Meknes, Meknes, Morocco
| | - Mohamed Bourhia
- Faculty of Medicine and Pharmacy, Ibn Zohr University, 70000 Laayoune, Morocco
| | - Laila Benbacer
- Unité de Biologie et Recherches Moléculaires Département Sciences du Vivant, Centre National de l'Energie, des Sciences et Techniques Nucléaires (CNESTEN), Rabat, Morocco
| | - Bachir El Bouhali
- Department of Biology, FSM, Moulay Ismail University of Meknes, Meknes, Morocco
| | - Leila Rezig
- University of Carthage, National Institute of Applied Sciences and Technology, LR11ES24, LIP-MB 'Laboratory of Protein Engineering and Bioactive Molecules', Tunis, Tunisia; High Institute of Food Industries, University of Carthage, Tunis, Tunisia
| | - Marc Poirot
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse III, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
| | - Gérard Lizard
- Laboratoiry Bio-PeroxIL / EA7270, Université de Bourgogne / Inserm, 21000 Dijon, France; PHYNOHA Consulting, 21121 Fontaine-lès-Dijon, France.
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Xu Q, Wang D, Lv X, Chen H, Wei F. Comprehensive profiling and evaluation of free/conjugated Phytosterols in crops using chemical derivatization coupled with UHPLC-ESI-QTOF-MS/MS. Food Chem 2024; 463:141316. [PMID: 39316913 DOI: 10.1016/j.foodchem.2024.141316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 09/08/2024] [Accepted: 09/14/2024] [Indexed: 09/26/2024]
Abstract
Phytosterols are naturally existed in crops but their detection is constrained by sensitivity and accuracy due to the inefficient analytical approaches. This study hypothesizes that an untargeted analytical method combining chemical derivatization with ultrahigh performance liquid chromatography-electrospray ionization quadrupole time-of-flight mass spectrometry can identify the various composition and contents of phytosterols in different crops. The results showed that chemical derivatization significantly enhanced intensity of phytosterols compared with non-derivatized samples. Using precursor ion scanning (PIS) of m/z 252.0690, dansyl chloride-labeled phytosterols were identified, demonstrating that rapeseeds had the highest content of total phytosterol (3981.2 ± 95.3 mg/kg), followed by sunflower seeds, flaxseeds, corn and rice, respectively. Principal component analysis revealed significant variations in phytosterol distribution among 15 crop samples, suggesting the applicability of phytosterol profile as a marker for phytosterols-contained crops. Hence, the proposed analytic approach proves high efficiency and accuracy in determining phytosterols and advances the study for phytosterol-enriched crops.
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Affiliation(s)
- Qiuhui Xu
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Dan Wang
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China.
| | - Xin Lv
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Hong Chen
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Fang Wei
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China; Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, PR China.
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Garcia-Llatas G, Alegría A, Barberá R, Cilla A. Current methodologies for phytosterol analysis in foods. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Shao Y, Hu Z, Liu C, Xu Q, Zhang H, Yan Q, Zhu D, Zhu Z. Phenolic acids and phytosterols in rice grains and wheat flours consumed in five regions of China. J Food Sci 2021; 86:1878-1892. [PMID: 33884623 DOI: 10.1111/1750-3841.15704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/15/2021] [Accepted: 03/04/2021] [Indexed: 11/27/2022]
Abstract
Phenolic acids and phytosterols, the main functional compounds in cereals, could promote wellbeing and reduce the risks of diet-related diseases. This study aimed to demonstrate phenolic acid and phytosterol profiles in rice grains and wheat flours, and estimate their intakes in five geographical regions and among different age groups. Phenolic acids and phytosterols mainly existed in bound form, and the whole rice grain had high amount of 161.39 to 368.74 µg/g and 37.50 to 93.31 mg/ 100 g, respectively. In total, nine phenolic acids and six phytosterols were detected with ferulic and p-coumaric acid, and β-sitosterol the most abundant. The dietary intakes of phenolic acids and phytosterols were calculated combined with the dietary foods intake data of Chinese people. The intakes of total phenolic acids and phytosterols from rice grains and wheat flours varied across different regions with Beijing the highest among the five regions. At the age of 2 to 70 years, the average intakes of phenolic acids and phytosterols from rice and wheat flours were 7.74 to 17.52 and 58.02 to 135.61 mg/sp/day, respectively. If 3-ounce of polished rice was replaced by black rice grain, the predicted intakes of total phenolic acids and phytosterols from rice grains and wheat flours would increase by at least 196% and 68%, respectively, especially for free phenolic acids and phytosterols. PRACTICAL APPLICATION: This study would help the consumers know how much phenolic acids and phytosterols they would get from 3 ounces of black rice in a reasonable intake of staple food but shift away other kinds of foods. It could also provide inspirations for food industries to explore the functional cereal foods that are rich in phenolic acids and phytosterols for different regions and different age groups.
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Affiliation(s)
- Yafang Shao
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China.,Laboratory of Quality and Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture and Rural Affairs, Hangzhou, 310006, China
| | - Zhanqiang Hu
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China.,Laboratory of Quality and Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture and Rural Affairs, Hangzhou, 310006, China
| | - Chengzhi Liu
- Hangzhou Digital-Micro Biotech Co. Ltd, Hangzhou, 310000, China
| | - Qingyu Xu
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China
| | - Huali Zhang
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China
| | - Qin Yan
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China
| | - Dawei Zhu
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China
| | - Zhiwei Zhu
- China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310006, China.,Laboratory of Quality and Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture and Rural Affairs, Hangzhou, 310006, China
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Di Lena G, Sanchez del Pulgar J, Lombardi Boccia G, Casini I, Ferrari Nicoli S. Corn Bioethanol Side Streams: A Potential Sustainable Source of Fat-Soluble Bioactive Molecules for High-Value Applications. Foods 2020; 9:E1788. [PMID: 33276511 PMCID: PMC7760800 DOI: 10.3390/foods9121788] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 11/30/2022] Open
Abstract
This paper reports data from a characterization study conducted on the unsaponifiable lipid fraction of dry-grind corn bioethanol side streams. Phytosterols, squalene, tocopherols, tocotrienols, and carotenoids were quantified by High Performance Liquid Chromatography with Diode-Array Detector (HPLC-DAD) and Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) in different lots of post-fermentation corn oil and thin stillage collected from a bioethanol plant over a time-span of one year. Fat-soluble bioactives were present at high levels in corn oil, with a prevalence of plant sterols over tocols and squalene. Beta-sitosterol and sitostanol accounted altogether for more than 60% of total sterols. The carotenoid profile was that typical of corn, with lutein and zeaxanthin as the prevalent molecules. The unsaponifiable lipid fraction profile of thin stillage was qualitatively similar to that of post-fermentation corn oil but, in quantitative terms, the amounts of valuable biomolecules were much lower because of the very high dilution of this side stream. Results indicate that post-fermentation corn oil is a promising and sustainable source of health-promoting bioactive molecules. The concomitant presence of a variegate complex of bioactive molecules with high antioxidant potentialities and their potential multifaceted market applications as functional ingredients for food, nutraceutical, and cosmeceutical formulations, make the perspective of their recovery a promising strategy to create new bio-based value chains and maximize the sustainability of corn dry-grind bioethanol biorefineries.
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Affiliation(s)
- Gabriella Di Lena
- CREA Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (J.S.d.P.); (G.L.B.); (I.C.); (S.F.N.)
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Characterization and determination of free phytosterols and phytosterol conjugates: The potential phytochemicals to classify different rice bran oil and rice bran. Food Chem 2020; 344:128624. [PMID: 33248841 DOI: 10.1016/j.foodchem.2020.128624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 10/12/2020] [Accepted: 11/08/2020] [Indexed: 11/22/2022]
Abstract
Phytosterols are important beneficial compounds found in rice bran (RB) and rice bran oil (RBO). Although relationships have been confirmed between the forms of phytosterols and their bioactivities, the analysis of different forms of phytosterols in RB and RBO has been lacking. In this study, high temperature gas chromatography-mass spectrometry (HTGC-MS) was combined with the single standard to determine multi-components (SSDMC) method to determine free sterols (FSs) and steryl glycosides (SGs) in RB and RBO. High-performance liquid chromatography (HPLC) was used to determine steryl ferulates (SFs). There was clear variation in the composition of FS, SF and SG, indicating that different forms of phytosterols can discriminate between different RB and RBO. The developed method may be also useful for the detection of other compounds of interest in oils, oil seeds or cereals.
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Hossain A, Jayadeep A. Analysis of bioaccessibility of campesterol, stigmasterol, and β-sitosterol in maize by in vitro digestion method. J Cereal Sci 2020. [DOI: 10.1016/j.jcs.2020.102957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Tsuzuki W, Komba S, Kotake-Nara E. Diversity in γ-oryzanol profiles of Japanese black-purple rice varieties. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2019; 56:2778-2786. [PMID: 31168160 PMCID: PMC6525689 DOI: 10.1007/s13197-019-03767-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/27/2019] [Accepted: 04/02/2019] [Indexed: 11/28/2022]
Abstract
The γ-oryzanol contents and the composition of steryl ferulates distributed in Japanese pigmented rice varieties were investigated using the high-performance liquid chromatography-ultraviolet detection method for the purpose of expanding their utilisation. The average γ-oryzanol content in nine black-purple, four red, four green and three brown rice varieties was 54.2, 47.3, 44.3 and 43.3 mg γ-oryzanol equivalent/100 g dried weight, respectively. Among the nine varieties of black-purple rice, five varieties showed steryl ferulate composition similar to that of brown, red and green varieties. In contrast, the composition of steryl ferulates in other four black-purple rice varieties was partially specific and was characterised by a low amount of campesteryl ferulate and high of campestanyl ferulate and stigmastanyl ferulate. The latter two steryl ferulates have been recognised as minor components of γ-oryzanol in rice and as major components in wheat and corn. These results indicate that the compositions of steryl ferulates vary among Japanese black-purple rice varieties.
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Affiliation(s)
- Wakako Tsuzuki
- National Agriculture and Food Research Organization, Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642 Japan
| | - Shiro Komba
- National Agriculture and Food Research Organization, Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642 Japan
| | - Eiichi Kotake-Nara
- National Agriculture and Food Research Organization, Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642 Japan
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Tsuzuki W, Komba S, Kotake-Nara E, Aoyagi M, Mogushi H, Kawahara S, Horigane A. The unique compositions of steryl ferulates in foxtail millet, barnyard millet and naked barley. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Esche R, Scholz B, Engel KH. Online LC-GC analysis of free sterols/stanols and intact steryl/stanyl esters in cereals. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10932-10939. [PMID: 24117337 DOI: 10.1021/jf403046z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The suitability of online liquid chromatography-gas chromatography for the analysis of free sterols/stanols, steryl/stanyl fatty acid esters, and trans-steryl/stanyl ferulic acid esters in cereals is demonstrated. The silylated lipid extracts were fractionated via liquid chromatography on a normal phase, and the fractions containing the sterol classes were transferred online to the gas chromatograph for the analysis of their individual compositions. The study provides for the first time data on free sterols/stanols and intact steryl/stanyl esters in sweet corn, popcorn, and proso millet. Sweet corn revealed the highest contents of free sterols/stanols and steryl/stanyl fatty acid esters, and popcorn, in turn, the highest amounts of trans-steryl/stanyl ferulic acid esters. The distribution patterns of the proso millet samples revealed pronounced differences from those of sweet corn and popcorn as they particularly exhibited high proportions of free cholesterol and cholesteryl fatty acid esters. Furthermore, no trans-steryl/stanyl ferulic acid esters could be detected.
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Affiliation(s)
- Rebecca Esche
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München , Maximus-von-Imhof-Forum 2, D-85350 Freising, Germany
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