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Nisbett KE, Vendruscolo LF, Koob GF. Indulging Curiosity: Preliminary Evidence of an Anxiolytic-like Effect of Castor Oil and Ricinoleic Acid. Nutrients 2024; 16:1527. [PMID: 38794765 PMCID: PMC11124509 DOI: 10.3390/nu16101527] [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: 04/01/2024] [Revised: 05/09/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
In the process of validating the elevated zero maze, a common test of anxiety-like behavior, in our laboratory, we demonstrated an anxiolytic-like effect of castor oil and its primary component, ricinoleic acid. We tested the effects of vehicle and chlordiazepoxide in male mice in the elevated zero maze following a 30-min pretreatment time. Chlordiazepoxide is a United States Food and Drug Administration-approved drug that was previously shown to exert anxiolytic-like effects in both the elevated zero maze and elevated plus maze. Chlordiazepoxide was administered at doses of 5 or 10 mg/kg. We used 5% polyoxyl 35 castor oil (Kolliphor® EL) and saline as treatment vehicles and found that the effect of chlordiazepoxide on open zone occupancy and open zone entries was blunted when 5% Kolliphor was used as the vehicle. These tests demonstrated that chlordiazepoxide increased open zone occupancy and entries in the elevated zero maze more effectively when saline was used as the treatment vehicle and that Kolliphor dampened the anxiolytic-like effect of chlordiazepoxide when it was used as the treatment vehicle. Notably, 5% Kolliphor alone slightly increased baseline open zone occupancy and entries. Given that Kolliphor is a derivative of castor oil, we next tested the effect of 5% castor oil and 5% ricinoleic acid, which is a major component of castor oil. We found that both castor oil and ricinoleic acid increased open zone occupancy but not entries compared with saline. Altogether, our findings demonstrate that Kolliphor, castor oil, and ricinoleic acid may exert anxiolytic-like effects in male mice in the elevated zero maze. This potential anxiolytic-like effect of castor oil is consistent with its well-established beneficial effects, including anti-inflammatory, antioxidant, antifungal, and pain-relieving properties.
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Affiliation(s)
- Khalin E. Nisbett
- Graduate Program in Neuroscience, Graduate College, University of Illinois Chicago, Chicago, IL 60607, USA
- Stress and Addiction Neuroscience Unit, Integrative Neuroscience Research Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD 21224, USA
- Neurobiology of Addiction Section, Integrative Neuroscience Research Branch, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Leandro F. Vendruscolo
- Stress and Addiction Neuroscience Unit, Integrative Neuroscience Research Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD 21224, USA
| | - George F. Koob
- Neurobiology of Addiction Section, Integrative Neuroscience Research Branch, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
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Lenze M, Benedetti MD, Roco J, Ramírez PG, Blanco R, Yaceszen S, Corrales C, Wikinski S, Gutiérrez ML. Advancing ocular safety research: A comprehensive examination of benzocaine acute exposure without animal testing. Toxicol Lett 2024; 394:138-145. [PMID: 38458340 DOI: 10.1016/j.toxlet.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Benzocaine is a widely employed local anaesthetic; however, there is a notable dearth of preclinical and clinical evidence regarding its safety in ophthalmological products. To address this, a comprehensive strategy incorporating in silico and in vitro methodologies was proposed for assessing benzocaine's ocular toxicity without animal testing. To collect the in silico evidence, the QSAR Toolbox (v4.5) was used. A single exposure to two benzocaine concentrations (2% and 20%) was evaluated by in vitro methods. Hen's Egg Chorioallantoic Membrane Test (HET-CAM) was performed to evaluate the effects on the conjunctiva. To study corneal integrity, Short Time Exposure test (STE) and Bovine Corneal Opacity and Permeability (BCOP) assay, followed by histopathological analysis, were carried out. Results from both in silico and in vitro methodologies categorize benzocaine as non-irritating. The histopathological analysis further affirms the safety of using benzocaine in eye drops, as no alterations were observed in evaluated corneal strata. This research proposes a useful combined strategy to provide evidence on the safety of local anaesthetics and particularly show that 2% and 20% benzocaine solutions do not induce eye irritation or corneal damage, supporting the potential use of benzocaine in the development of ophthalmic anesthetic products.
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Affiliation(s)
- M Lenze
- Instituto de Farmacología, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET - Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - M D Benedetti
- Instituto de Farmacología, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET - Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - J Roco
- Instituto de Farmacología, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET - Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - P G Ramírez
- Instituto de Farmacología, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET - Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | | | | | | | - S Wikinski
- Instituto de Farmacología, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET - Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - M L Gutiérrez
- Instituto de Farmacología, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET - Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina.
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Parvizi MM, Saki N, Samimi S, Radanfer R, Shahrizi MM, Zarshenas MM. Efficacy of castor oil cream in treating infraorbital hyperpigmentation: An exploratory single-arm clinical trial. J Cosmet Dermatol 2024; 23:911-917. [PMID: 37927123 DOI: 10.1111/jocd.16056] [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: 07/28/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023]
Abstract
INTRODUCTION Infraorbital hyperpigmentation represents one of the most prevalent conditions in cosmetic dermatology. To treat this condition, many patients prefer natural remedies. This study explored the efficacy of topical castor oil cream in treating patients with infraorbital hyperpigmentation. METHODS We conducted an exploratory single-arm clinical trial at the Shahid Faghihi Dermatology Clinic and Molecular Dermatology Research Center of Shiraz University of Medical Sciences, Shiraz, Iran, during 2021-2022. Using the convenience sampling method, we enrolled 25 patients with infraorbital hyperpigmentation. We instructed the patients to apply topical castor oil cream twice daily for 2 months. The darkness, melanin, and erythema levels were evaluated by VisioFace® 1000 D and SkinColorCatch® devices. We used a visual analog scale to assess skin laxity, wrinkles, and patient satisfaction. Data analysis was done with Stata version 14.2. RESULTS The data of 22 patients with a mean age of 40.92 ± 7.33 years were analyzed. The VisioFace® scores decreased significantly by the end of the study [right eyes: mean difference (MD): -5.63 (95% CI: -7.12 to -4.15), p < 0.001; left eyes: MD: -5.91 (95% CI: -7.46 to -4.36), p < 0.001]. Moreover, castor oil cream significantly reduced the melanin level, wrinkles, and skin laxity in the infraorbital region (p < 0.05). CONCLUSIONS Castor oil cream seems to be an effective alternative for treating infraorbital hyperpigmentation. Randomized clinical trials are needed to confirm our findings.
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Affiliation(s)
- Mohammad Mahdi Parvizi
- Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasrin Saki
- Department of Dermatology, Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soodabeh Samimi
- Research Center for Traditional Medicine and History of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Roya Radanfer
- Department of Dermatology, Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Miaad Shahrizi
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Mehdi Zarshenas
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Epilepsy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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4
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Khater ESG, AbdAlla SA, Bahnasawy AH, AbuHashish HM. Improvement of the production of bio-oil and biodiesel from Egyptian Jatropha seeds by using microwave and ultrasonic. Sci Rep 2024; 14:1882. [PMID: 38253681 PMCID: PMC10803296 DOI: 10.1038/s41598-024-51579-6] [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: 07/27/2023] [Accepted: 01/07/2024] [Indexed: 01/24/2024] Open
Abstract
Bio-diesel is used for engine as a replacement of diesel fuel which is characterized by lower emission, low pollution and renewable some of fuel. This study focus on how to enhance the production of bio-oil from Jatropha seeds by using microwave and ultrasonic as pre-treatments. To achieve that, the effects of extraction temperature (60, 80, 100 and 120 °C) and extraction screw speed (60, 90 and 120 rpm) on oil extraction yield and quality, extraction energy requirements and extraction time and were studied. Studying the effect of pretreatments by microwave and ultrasonic on the yield, energy and time of extraction were studied. The results most important indicate that the highest oil yield (25.1%) was recorded at 120 °C extraction temperature and 60 rpm screw speed. The energy required for extraction ranged from 8 to 11.5 W.h depending on temperature and speed of extraction. The results indicated that using both pretreatments improve the oil yield by 5.03% for microwave and by 6.75% for ultrasonic. Finally, the results concluded that to produce 1 kg of biodiesel you need 1.1 kg raw oil and consume from 2052.5 W.h energy requirement.
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Affiliation(s)
- El-Sayed G Khater
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, Moshtohor, P.O. Box 13736, Toukh, Kalubia, Egypt.
| | - Soha A AbdAlla
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, Moshtohor, P.O. Box 13736, Toukh, Kalubia, Egypt
| | - Adel H Bahnasawy
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, Moshtohor, P.O. Box 13736, Toukh, Kalubia, Egypt
| | - Hassan M AbuHashish
- Mechanical Engineering Department, Engineering Research Division, National Research Centre, Giza, Egypt
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Park K, Hahn JS. Engineering Yarrowia lipolytica for sustainable ricinoleic acid production: A pathway to free fatty acid synthesis. Metab Eng 2024; 81:197-209. [PMID: 38072356 DOI: 10.1016/j.ymben.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/17/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023]
Abstract
Ricinoleic acid (C18:1-OH, RA) is a valuable hydroxy fatty acid with versatile applications. The current industrial source of RA relies on the hydrolysis of castor bean oil. However, the coexistence of the toxic compound ricin and the unstable supply of this plant have led to an exploration of promising alternatives: generating RA in heterologous plants or microorganisms. In this study, we engineered the oleaginous yeast Yarrowia lipolytica to produce RA in the form of free fatty acids (FFA). First, we overexpressed fungal Δ12 oleate hydroxylase gene (CpFAH12) from Claviceps purpurea while deleting genes related to fatty acid degradation (MEF1 and PEX10) and oleic acid desaturation (FAD2). Since Δ12 oleate hydroxylase converts oleic acid (C18:1) located at the sn-2 position of phosphatidylcholine (PC), we next focused on increasing the PC pool containing oleic acid. This objective was achieved thorough implementing metabolic engineering strategies designed to enhance the biosynthesis of PC and C18 fatty acids. To increase the PC pool, we redirected the flux towards phospholipid biosynthesis by deleting phosphatidic acid phosphatase genes (PAH1 and APP1) and diacylglycerol acyltransferase gene (DGA1), involved in the production of diacylglycerol and triacylglycerol, respectively. Furthermore, the PC biosynthesis via the CDP-DAG pathway was enhanced through the overexpression of CDS1, PSD1, CHO2, and OPI3 genes. Subsequently, to increase the oleic acid content within PC, we overexpressed the heterologous fatty acid elongase gene (MaC16E) involved in the conversion of C16 to C18 fatty acids. As RA production titer escalated, the produced RA was mainly found in the FFA form, leading to cell growth inhibition. The growth inhibition was mitigated by inducing RA secretion via Triton X-100 treatment, a process that simultaneously amplified RA production by redirecting flux towards RA synthesis. The final engineered strain JHYL-R146 produced 2.061 g/L of free RA in a medium treated with 5% Triton X-100, constituting 74% of the total FFAs produced. Generating free RA offers the added benefit of bypassing the hydrolysis stage required when employing castor bean oil as an RA source. This achievement represents the highest level of RA synthesis from glucose reported thus far, underscoring the potential of Y. lipolytica as a host for sustainable RA production.
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Affiliation(s)
- Kwanghyun Park
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ji-Sook Hahn
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea.
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Rajan D, Amrutha M, George S, Susmitha A, Anburaj AA, Nampoothiri KM. Molecular cloning, overexpression, characterization, and In silico modelling analysis of a novel GDSL autotransporter-dependent outer membrane lipase (OML) of Pseudomonas guariconensis. Int J Biol Macromol 2024; 255:128050. [PMID: 37992946 DOI: 10.1016/j.ijbiomac.2023.128050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/31/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023]
Abstract
The outer membrane lipase (oml) gene, encoding a novel autotransporter-dependent lipase from Pseudomonas guariconensis, was cloned and sequenced. The oml gene has an open reading frame of 1866 bp. It encodes the 621 amino acid autotransporter-dependent GDSL lipase (OML), which has the highest sequence similarity (64.08 %) with the EstA of Pseudomonas aeruginosa (PDB:3kvn.1. A). OML was expressed and purified, which showed a purified band of approximately 70 kDa. The purified enzyme showed maximum activity at pH 9 and 40 °C. Substrate specificity studies and kinetic study by Lineweaver-Burk plot of purified OML showed Km of 1.27 mM and Vmax of 333.33 U/mL with p-nitrophenyl palmitate. The purified enzyme showed good stability in the presence of hexane, methanol, and ethanol, while the presence of the metal ion Mg2+ showed maximum lipase activity. Bioinformatics analysis supported the in vitro findings by predicting enzyme substrate specificity towards long-chain fatty acids and fatty acids with shorter chain lengths. The stability of the interaction of the protein-ligand complex (OML-ricinoleic acid) was confirmed using MDS and castor oil bioconversion using purified OML was confirmed using High-Performance Liquid Chromatography (HPLC).
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Affiliation(s)
- Devi Rajan
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, Kerala, India; University of Kerala, Thiruvananthapuram 695034, Kerala, India
| | - M Amrutha
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sinumol George
- Cancer Research Program (HPV), Rajiv Gandhi Centre for Biotechnology, India
| | - A Susmitha
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | | | - Kesavan Madhavan Nampoothiri
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, Kerala, India.
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Mahdieh M, Talebi SM, Dehghan T, Tabaripour R, Matsyura A. Molecular genetics, seed morphology and fatty acids diversity in castor (Ricinus communis L., Euphorbiaceae) Iranian populations. Mol Biol Rep 2023; 50:9859-9873. [PMID: 37848759 DOI: 10.1007/s11033-023-08904-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/06/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Castor (Ricinus communis L.) seeds contain a large amount of oil that has several biological activities. In the current research, phytogeographic distribution, seed morphological characteristics, molecular genetic diversity and structure, and fatty acid composition were investigated in nine Iranian castor populations. METHODS AND RESULTS The cetyltrimethylammonium bromide (CTAB) protocol was used to extract the nuclear genomes. These were later amplified using 13 SCoT molecular primers. The phytogeographic distribution was determined based on the Zohary mapping, GC apparatus determined the fatty acid composition of the seeds. GenAlex, STRUCTURE, GenoDive, PopGene, and PopART software were used for the statistical analyzes. On phytogeographic mapping, the harvested populations belonged to different districts of the Euro-Siberian and Irano-Turanian regions (Holarctic kingdom). Most of the quantitative morphological traits of the seeds differed significantly (P ≤ 0.05) between the populations. The AMOVA test demonstrated a large proportion of significant genetic diversity assigned among populations, which were approved by some estimated parameters of genetic diversity such as Nm, Ht, Hs, and Gst. Nei's genetic distance and structure analysis confirmed the existence of two main genotype groups and some intermediates. However, there was no isolation by distance between the genotypes. Unsaturated fatty acids were detected as the main component of seed oil with linoleic and ricinoleic acids. Significant correlations were detected between the main fatty acids of seed oil with seed morphological traits, geographic distance and the geographic parameters of habitats. According to the composition of the seed fatty acids, four chemotypes groups were detected. CONCLUSIONS The classification patterns of the populations based on molecular genetic data, fatty acid composition, and phytogeographic mapping were not identical. These findings indicated that Iranian castor populations had unusual seed fatty acid composition which strongly depended on habitat geographic factors and seed morphological traits. However, the identified chemotypes and genotypes can be used in future breeding programs.
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Affiliation(s)
- Majid Mahdieh
- Department of Biology, Faculty of Sciences, Arak University, Arak, 38156-8-8349, Iran
| | - Seyed Mehdi Talebi
- Department of Biology, Faculty of Sciences, Arak University, Arak, 38156-8-8349, Iran.
| | - Tahereh Dehghan
- Department of Biology, Faculty of Sciences, Arak University, Arak, 38156-8-8349, Iran
| | - Raheleh Tabaripour
- Department of Plant Sciences, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
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Yang L, Cui B, Chen H, Fan Y, Zhang Y, Song S, Yin Q, Zhao G, Hao Z. Research on microstructural-mechanical and shearing properties of castor seed during mechanical extraction. J Texture Stud 2023; 54:902-912. [PMID: 37407436 DOI: 10.1111/jtxs.12790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/19/2023] [Accepted: 06/20/2023] [Indexed: 07/07/2023]
Abstract
Castor seed oil, as an important biomass fuel, has attracted extensive attention worldwide due to inclusive applications. Castor seed screw mechanical extraction is in fact seed shear damage and oil output. Seed shearing mechanism has been investigated with a developed tribometer. Influences of pressing load, shearing speed, roller roughness were analyzed. Castor seed structural damage was in-situ observed with optical microscope, and in-depth analyzed with Scanning Electron Microscopy and Energy Dispersive Spectroscopy. The results reveal that shear interaction can be divided into three stages: coat damage, transition shearing and endosperm oil output. Seed shear mechanism includes coat peeling, endosperm plowing, tissue transferring and oil lubrication. High pressing load leads to more damage of coat and endosperm, causing more oil to flow out. With shearing speed increasing, coat is easily peeled, obvious endosperm shear plowing and oil lubrication happened in contact area. Coat damage by high roughness leads more oil output. Castor oil enters the contact area and work as lubricant, leading to the decrease of friction resistance.
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Affiliation(s)
- Liu Yang
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, Wuxi, Jiangsu, China
| | - Bo Cui
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
| | - Huan Chen
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
| | - Yuchao Fan
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
| | - Yonglin Zhang
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
- Hubei Cereals and Oils Machinery Engineering Center, Wuhan, Hubei, China
| | - Shaoyun Song
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
- Hubei Cereals and Oils Machinery Engineering Center, Wuhan, Hubei, China
| | - Qiang Yin
- College of Mechanical Engineering, Wuhan Polytechnical University, Wuhan, Hubei, China
| | - Gang Zhao
- Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, China
| | - Zhiqiang Hao
- Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, China
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Černý M, Petruš J, Chamradová I. The Influence of Porosity on Mechanical Properties of PUR-Based Composites: Experimentally Derived Mathematical Approach. Polymers (Basel) 2023; 15:polym15081960. [PMID: 37112105 PMCID: PMC10141045 DOI: 10.3390/polym15081960] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
The work is focused on the mechanical behavior description of porous filled composites that is not based on simulations or exact physical models, including different assumptions and simplifications with further comparison with real behavior of materials with different extents of accordance. The proposed process begins by measurement and further fitting of data by spatial exponential function zc = zm · p1b · p2c, where zc/zm is mechanical property value for composite/nonporous matrix, p1/p2 are suitable dimensionless structural parameters (equal to 1 for nonporous matrix) and b/c are exponents ensuring the best fitting. The fitting is followed by interpolation of b and c, which are logarithmic variables based on the observed mechanical property value of nonporous matrix with additions of further properties of matrix in some cases. The work is dedicated to the utilization of further suitable pairs of structural parameters to one pair published earlier. The proposed mathematical approach was demonstrated for PUR/rubber composites with a wide range of rubber filling, various porosity, and different polyurethane matrices. The mechanical properties derived from tensile testing included elastic modulus, ultimate strength and strain, and energy need for ultimate strain achievement. The proposed relationships between structure/composition and mechanical behavior seem to be suitable for materials containing randomly shaped filler particles and voids and, therefore, could be universal (and also hold materials with less complicated microstructure) after potential following and more exact research.
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Affiliation(s)
- Miroslav Černý
- Faculty of Chemistry, Institute of Materials Science, Brno University of Technology, Purkyňova 464/118, 612 00 Brno, Czech Republic
| | - Josef Petruš
- Faculty of Chemistry, Institute of Materials Science, Brno University of Technology, Purkyňova 464/118, 612 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
| | - Ivana Chamradová
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
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10
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Khater ESG, Abd Allah SA, Bahnasawy AH, Hashish HMA. Enhancing bio-oil yield extracted from Egyptian castor seeds by using microwave and ultrasonic. Sci Rep 2023; 13:4606. [PMID: 36944764 PMCID: PMC10030652 DOI: 10.1038/s41598-023-31794-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 03/17/2023] [Indexed: 03/23/2023] Open
Abstract
Energy scarcity and conventional energy problems are the main reason of finding a renewable source of energy which is cheap and environmental friendly, therefore, biodiesel production is one of the most promising solutions of this problem. Also, Egyptian castor is one of the most important crops for oil production compared with other commonly used oil crops. The main aim of this study is to enhance the production of bio-oil from Egyptian castor seeds by using microwave and ultrasonic as pre-treatments. To achieve that, the effects of extraction screw speed (20, 40 and 60 rpm) and temperature (100, 150, 200 and 250 °C) on oil extraction yield and quality, extraction energy requirements and extraction time and were studied. Also, the effect of pretreatment conditions of microwave at three levels of power (Low, Med and High) and different times (1, 2 and 3 min) and pretreatment condition ultrasonic with different temperatures (40, 60 and 80 °C) and different times (15, 30 and 45 min) for castor seeds before extraction with the optimum condition of the screw press on oil extraction yield from castor seeds, extraction energy, extraction time and quality of the oil extracted. The results indicate that the optimum conditions oil extraction by screw press were 200 °C extraction temperature and 60 rpm screw speed. It could be seen that the extraction oil yield, extraction energy requirements and extraction time were 35.59%, 18.68 and 1.86 min, respectively. Microwave pretreatments had better on oil yield and energy required for extraction compared to ultrasonic pretreatments, where, microwave pretreatments recorded high oil yield and lower energy requirements compared to the ultrasonic pretreatments. Oil yield ranged from 32.67 to 37.41% compared to 13.29 to 39.83% in literature. The time required for extraction was ranged from 1.77 to 2.00 and 1.79 to 2.21 min for microwave and ultrasonic pretreatments, respectively. The pretreatment improved properties of the extracted oil.
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Affiliation(s)
- El-Sayed G Khater
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Toukh, Kalubia, Egypt.
| | - Soha A Abd Allah
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Toukh, Kalubia, Egypt
| | - Adel H Bahnasawy
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Toukh, Kalubia, Egypt
| | - Hassan M Abu Hashish
- Mechanical Engineering Department, Engineering Research Division, National Research Centre, Giza, Egypt
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Luker HA, Salas KR, Esmaeili D, Holguin FO, Bendzus-Mendoza H, Hansen IA. Repellent efficacy of 20 essential oils on Aedes aegypti mosquitoes and Ixodes scapularis ticks in contact-repellency assays. Sci Rep 2023; 13:1705. [PMID: 36717735 PMCID: PMC9886999 DOI: 10.1038/s41598-023-28820-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Cases of mosquito- and tick-borne diseases are rising worldwide. Repellent products can protect individual users from being infected by such diseases. In a previous study, we identified five essential oils that display long-distance mosquito repellency using a Y-tube olfactometer assay. In the current study, the contact repellent efficacy of 20 active ingredients from the Environmental Protection Agency's (EPA) Minimum Risk Pesticides list were tested using Aedes aegypti and Ixodes scapularis. We utilized an arm-in-cage assay to measure complete protection time from mosquito bites for these active ingredients. To measure tick repellency, we used an EPA-recommended procedure to measure the complete protection time from tick crossings. We found that of the 20 ingredients tested, 10% v/v lotion emulsions with clove oil or cinnamon oil provided the longest protection from both mosquito bites and tick crossings. We conclude that in a 10% v/v emulsion, specific active ingredients from the EPA Minimum Risk Pesticides list can provide complete protection from mosquito bites and tick crossings for longer than one hour.
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Affiliation(s)
- Hailey A Luker
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA.
| | - Keyla R Salas
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
| | - Delaram Esmaeili
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
| | - F Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Skeen Hall, Las Cruces, NM, 88003, USA
| | - Harley Bendzus-Mendoza
- Department of Computer Science, New Mexico State University, 1290 Frenger Mall, Las Cruces, NM, 88003, USA
| | - Immo A Hansen
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
- Institute for Applied Biosciences, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
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12
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Gunarto C, Go AW, Ju Y, Angkawijaya AE, Santoso SP, Ayucitra A, Soetaredjo FE, Ismadji S. Activity and stability of castor oil‐based microemulsions with cellulose nanocrystals as a carrier for astaxanthin. ASIA-PAC J CHEM ENG 2022. [DOI: 10.1002/apj.2832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chintya Gunarto
- Department of Chemical Engineering National Taiwan University of Science and Technology Taipei City Taiwan
- Department of Chemical Engineering Widya Mandala Surabaya Catholic University Surabaya Indonesia
- Collaborative Research Center for Sustainable and Zero Waste Industries Widya Mandala Surabaya Catholic University Surabaya Indonesia
| | - Alchris Woo Go
- Department of Chemical Engineering National Taiwan University of Science and Technology Taipei City Taiwan
| | - Yi‐Hsu Ju
- Department of Chemical Engineering National Taiwan University of Science and Technology Taipei City Taiwan
- Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei City Taiwan
- Taiwan Building Technology Center National Taiwan University of Science and Technology Taipei City Taiwan
| | - Artik Elisa Angkawijaya
- Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei City Taiwan
- Plant Lipid Research Team RIKEN Center for Sustainable Resource Science Yokohama Japan
| | - Shella Permatasari Santoso
- Department of Chemical Engineering Widya Mandala Surabaya Catholic University Surabaya Indonesia
- Collaborative Research Center for Sustainable and Zero Waste Industries Widya Mandala Surabaya Catholic University Surabaya Indonesia
| | - Aning Ayucitra
- Department of Chemical Engineering Widya Mandala Surabaya Catholic University Surabaya Indonesia
| | - Felycia E. Soetaredjo
- Department of Chemical Engineering Widya Mandala Surabaya Catholic University Surabaya Indonesia
- Collaborative Research Center for Sustainable and Zero Waste Industries Widya Mandala Surabaya Catholic University Surabaya Indonesia
| | - Suryadi Ismadji
- Department of Chemical Engineering Widya Mandala Surabaya Catholic University Surabaya Indonesia
- Collaborative Research Center for Sustainable and Zero Waste Industries Widya Mandala Surabaya Catholic University Surabaya Indonesia
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13
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Jin Q, Yang Z, Yang W, Gao X, Liu C. Genome-Wide Identification and Analysis of Lbd Transcription Factor Genes in Jatropha curcas and Related Species. PLANTS 2022; 11:plants11182397. [PMID: 36145796 PMCID: PMC9504267 DOI: 10.3390/plants11182397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022]
Abstract
Lateral organ boundaries domain (LBD) proteins are plant-specific transcription factors that play important roles in organ development and stress response. However, the function of LBD genes has not been reported in Euphorbiaceae. In this paper, we used Jatropha curcas as the main study object and added rubber tree (Hevea brasiliensis), cassava (Manihot esculenta Crantz) and castor (Ricinus communis L.) to take a phylogenetic analysis of LBD genes. Of LBD, 33, 58, 54 and 30 members were identified in J. curcas, rubber tree, cassava and castor, respectively. The phylogenetic analysis showed that LBD members of Euphorbiaceae could be classified into two major classes and seven subclasses (Ia-Ie,IIa-IIb), and LBD genes of Euphorbiaceae tended to cluster in the same branch. Further analysis showed that the LBD genes of Euphorbiaceae in the same clade usually had similar protein motifs and gene structures, and tissue expression patterns showed that they also have similar expression profiles. JcLBDs in class Ia and Ie are mainly expressed in male and female flowers, and there are multiple duplication genes with similar expression profiles in these clades. It was speculated that they are likely to play important regulatory roles in flower development. Our study provided a solid foundation for further investigation of the role of LBD genes in the sexual differentiaion of J. curcas.
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Affiliation(s)
- Qi Jin
- School of Life Sciences, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Zitian Yang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Wenjing Yang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Xiaoyang Gao
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
| | - Changning Liu
- School of Life Sciences, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
- Correspondence:
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14
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Darie-Niță RN, Irimia A, Grigoraș VC, Mustață F, Tudorachi N, Râpă M, Ludwiczak J, Iwanczuk A. Evaluation of Natural and Modified Castor Oil Incorporation on the Melt Processing and Physico-Chemical Properties of Polylactic Acid. Polymers (Basel) 2022; 14:polym14173608. [PMID: 36080683 PMCID: PMC9460240 DOI: 10.3390/polym14173608] [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: 08/14/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 11/16/2022] Open
Abstract
Bio-based plasticizers derived from renewable resources represent a sustainable replacement for petrochemical-based plasticizers. Vegetable oils are widely available, non-toxic and biodegradable, resistant to evaporation, mostly colorless and stable to light and heat, and are a suitable alternative for phthalate plasticizers. Plasticized poly(lactic acid) (PLA) materials containing 5 wt%, 10 wt%, 15 wt% and 20 wt% natural castor oil (R) were prepared by melt blending to improve the ductility of PLA. Three castor oil adducts with maleic anhydride (MA), methyl nadic anhydride (methyl-5-norbornene-2,3-dicarboxylic anhydride) (NA) and hexahydro-4-methylphthalic anhydride (HA), previously synthesized, were incorporated in a concentration of 15 wt% each in PLA and compared with PLA plasticized with natural R. The physico-chemical properties of PLA/R blends were investigated by means of processability, chemical structure, surface wettability, mechanical, rheological and thermal characteristics. The addition of natural and modified R significantly improved the melt processing by decreasing the melt viscosity by ~95%, increased the surface hydrophobicity, enhanced the flexibility by ~14 times in the case of PLA/20R blend and ~11 times in the case of PLA/15R-MA blend as compared with neat PLA. The TG/DTG results showed that the natural R used up to 20 wt% could significantly improve the thermal stability of PLA, similar to the maleic anhydride-modified R. Based on the obtained results, up to 20 wt% natural R and 15 wt% MA-, HA- or NA-modified R might be used as environmentally friendly plasticizers that can improve the overall properties of PLA, depending on the intended food packaging applications.
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Affiliation(s)
- Raluca Nicoleta Darie-Niță
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Anamaria Irimia
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Vasile Cristian Grigoraș
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Fănică Mustață
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Niță Tudorachi
- Natural Polymers, Bioactive and Biocompatible Materials Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Maria Râpă
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
- Correspondence:
| | - Joanna Ludwiczak
- Faculty of Environmental Engineering, University of Science and Technology, 50-013 Wrocław, Poland
| | - Andrzej Iwanczuk
- Faculty of Environmental Engineering, University of Science and Technology, 50-013 Wrocław, Poland
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15
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A Biorefinery Approach to Biodiesel Production from Castor Plants. Processes (Basel) 2022. [DOI: 10.3390/pr10061208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The high consumption of fossil fuels has significant environmental implications. An alternative to reduce the use of fossil fuels and develop ecological and economic processes is the bio-refinery approach. In the present study, the authors present the production of biodiesel from castor plants through a biorefinery approach. The process includes sub-processes associated with the integral use of castor plants, such as biodiesel production, oil extraction, fertilizer, and solid biomass production. Economic analyses show that producing only biodiesel is not feasible, but economic indicators (NPV, IRR, and profitability index) show it is much more feasible to establish businesses for the valorization of products and subproducts of castor plants, such as biomass densification. The internal rate return for the second scenario (E2) was 568%, whereas, for the first scenario (E1), it was not possible to obtain a return on investment.
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16
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Mechanical Harvesting of Castor Bean (Ricinus communis L.) with a Combine Harvester Equipped with Two Different Headers: A Comparison of Working Performance. ENERGIES 2022. [DOI: 10.3390/en15092999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Castor bean (Ricinus communis L.) is a promising industrial crop suitable for cultivation in marginal conditions in the Mediterranean area, but the mechanical harvesting of the seeds is still usually performed manually. In this manuscript, the authors present a preliminary test to assess the effectiveness of equipping a combine harvester with a sunflower header to mechanically harvest castor beans. Machinery performance, seed loss from impact (ISL) and cleaning systems (CSL), and seed cleaning were evaluated and compared with the results obtained from the same combine harvester equipped with a cereal header. According to the results, no statistically significant difference in CSL was found. Values ranged from 162. 41 kg dry matter (DM) ha−1 in the cereal header to 145.56 kg DM ha−1 in the sunflower header, corresponding, respectively, to 8% w/w and 7% w/w of the potential seed yield (PSY). Using the sunflower header significantly lowered ISL (158.16 kg DM ha−1, i.e., 8% w/w of PSY) in comparison with the cereal header (282.02 kg DM ha−1, i.e., 14% w/w of PSY). This suggests more gentle cutting and conveying capability of the sunflower header to harvest the plants without losing capsules. On the other hand, the use of different headers did not significantly affect the cleaning of the seeds which averaged at 20% of the total seeds collected in both cases. In conclusion, the study highlights that a conventional combine harvester equipped with a sunflower header could be the first step towards the development of a fully mechanized harvest phase in castor beans which triggers lower seed loss and does not negatively affect the cleaning capacity of the combine harvester. Further studies are also encouraged to confirm these findings in other hybrids.
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17
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GEBREHİWOT H, ZELELEW D. Ricinus Communis Seed oils as a Source of Biodiesel; A Renewable Form of Future Energy. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2022. [DOI: 10.18596/jotcsa.1019969] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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18
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Quality, Key Production Factors, and Consumption Volume of Niche Edible Oils Marketed in the European Union. SUSTAINABILITY 2022. [DOI: 10.3390/su14031846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Consumer’s awareness of the health-promoting aspects of food and their search for products with high nutritional value is driving increased interest in niche oils. Such oils are produced on a small scale due to limited access to raw material and its low oil content. The aim of this multi-criteria analysis was to position niche oils. Data for the study were collected based on a literature review regarding twenty-three niche oils available on the European Union market. Analysis of quality parameters, key production factors, waste reusability, and average annual consumption volume in 2015–2020 was performed. Based on the research, it was concluded that linseed (flaxseed) oil, hemp oil, mustard oil, raspberry seed oil, and sesame oil should be of the most interest to consumers. They are characterized by the highest content of tocopherols, sterols, polyphenols, and carotenoids, a favorable ratio of mono- and polyunsaturated fatty acids, and pro-ecological and sustainable production technology. Based on the results of the study, the need for empirical research was identified, the key to filling the knowledge gaps in the area of edible niche oils.
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19
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Jolayemi OS, Alagbe CI. Influence of Seed Variety and Extraction Technique on Fatty Acid Distribution and Quality Parameters of Tropical Castor (<i>Ricinus communis</i> L.) Oils. J Oleo Sci 2022; 71:1565-1575. [DOI: 10.5650/jos.ess22163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
| | - Caleb Iyanu Alagbe
- Department of Food Science and Technology, Federal University of Technology
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20
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Nitbani FO, Tjitda PJP, Wogo HE, Detha AIR. Preparation of Ricinoleic Acid from Castor Oil:A Review. J Oleo Sci 2022; 71:781-793. [PMID: 35661063 DOI: 10.5650/jos.ess21226] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Castor oil is a vegetable product extracted from Ricinus communis L (castor seed), which is primarily considered an important commercial value for the manufacturing of soaps, lubricants, coatings, etc. It is rich in hydroxylated fatty acids (ricinoleic acid, 89-92%) and is widely used in the cosmetic, pharmaceutical, oleochemical, and agricultural industries. This oil has also been confirmed as a bactericidal, anti-inflammatory, and antiherpetic agents, due to the ricinoleic acid having functional groups, such as -COOH, -OH, and -C=C-. Furthermore, it is converted into various acid derivative compounds with several applications. Therefore, this article reviewed some reaction stages to the preparation of ricinoleic acid from castor oil. Several methods or reaction pathways were employed in the preparation procedure, such as the Twitchell and Colgate-Emery processes, as well as the alkaline catalyzed, transesterification with methyl ricinoleic, and lipase-catalyzed hydrolysis, respectively. Although each of these preparation methods has advantages and disadvantages, the most effective technique was the hydrolysis through the use of the enzyme lipozyme TL IM. Besides being a green method, the conversion rate in the hydrolysis process was 96.2 ± 1.5.
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Affiliation(s)
- Febri Odel Nitbani
- Department of Chemistry, Faculty of Science and Engineering, Nusa Cendana University
| | | | - Hermania Em Wogo
- Department of Chemistry, Faculty of Science and Engineering, Nusa Cendana University
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21
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Yeboah A, Lu J, Gu S, Liu H, Shi Y, Amoanimaa-Dede H, Agyenim-Boateng KG, Payne J, Yin X. Evaluation of two wild castor (Ricinus communis L.) accessions for cadmium tolerance in relation to antioxidant systems and lipid peroxidation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:55634-55642. [PMID: 34142320 PMCID: PMC8494669 DOI: 10.1007/s11356-021-14844-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
The present study was conducted to assess the effect of toxicity of cadmium (Cd) on growth, tolerance index (TI), antioxidant activities, and malondialdehyde (MDA) content in two contrasting wild castor accessions (16-024 and S2-4) via hydroponic experiment (0 and 100 mg/L Cd). The results showed that Cd significantly reduced the growth rate, seedling height, root length, and shoot length of the castor accessions compared to the control, with the Cd effect being more severe in S2-4 than in 16-024. In addition, biomass response including the root and shoot fresh weight and root dry weight decreased in both accessions compared to the control. Compared to the control group, the shoot dry weight of accession S2-4 declined by 21.7%, whereas there was no change in 16-024, suggesting a level of tolerance in 16-024. Analysis of TI on all the growth parameters and biomass content revealed that accession 16-024 was highly tolerant to Cd stress than S2-4. The results further revealed that the expression of the antioxidant enzymes, viz., superoxide dismutase (SOD), catalase (CAT), non-enzymatic antioxidant, glutathione, and MDA content, was influenced by genotype. S2-4 exhibited a higher antioxidant activity (SOD, CAT) and lipid peroxidation activity than 16-024, indicative of oxidative damage from Cd stress.
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Affiliation(s)
- Akwasi Yeboah
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Jiannong Lu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Shuailei Gu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Haiyan Liu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yuzhen Shi
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Hanna Amoanimaa-Dede
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | | | - Joseph Payne
- Department of Biotechnology, University for Development Studies, Tamale, Ghana
| | - Xuegui Yin
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China.
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22
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Tsehay S, Ortiz R, Geleta M, Bekele E, Tesfaye K, Johansson E. Nutritional Profile of the Ethiopian Oilseed Crop Noug ( Guizotia abyssinica Cass.): Opportunities for Its Improvement as a Source for Human Nutrition. Foods 2021; 10:1778. [PMID: 34441555 PMCID: PMC8393925 DOI: 10.3390/foods10081778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to evaluate the potential of noug as a source for human nutrition. Diverse noug genotypes were evaluated for their content and/or composition of total lipids, fatty acids, proteins, and minerals using standard methods. The total lipid content (32.5-45.7%) and the proportion of an essential fatty acid, linoleic acid (72.2-77.8%), were high in noug, compared to other oilseed crops. The proportion of oleic acid, a monounsaturated fatty acid, was low in noug (5.2-9.2%). The breeding objective of increasing the oleic acid level in the highland, where noug is mainly cultivated, was limited, as the content of this acid was low in this environment. The seed protein concentration (25.4-27.5%) and mineral content were mainly affected by the cultivation environment, as the high temperature increased the amount of protein, whereas the soil condition was a major factor in the variation of the mineral content. Thus, noug is a unique crop with a high seed oil content, of which a high proportion is linoleic acid. With the exception of the seed oleic acid content, when grown in low-altitude areas, the genotypic variation contributes less than the cultivation environment to the nutritional attributes of noug. Hence, high-oleic-acid noug for lowland production can be targeted as a breeding goal.
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Affiliation(s)
- Sewalem Tsehay
- Department of Plant Breeding, Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (S.T.); (R.O.); (E.J.)
| | - Rodomiro Ortiz
- Department of Plant Breeding, Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (S.T.); (R.O.); (E.J.)
| | - Mulatu Geleta
- Department of Plant Breeding, Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (S.T.); (R.O.); (E.J.)
| | - Endashaw Bekele
- Department of Microbial, Cellular and Molecular Biology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia; (E.B.); (K.T.)
| | - Kassahun Tesfaye
- Department of Microbial, Cellular and Molecular Biology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia; (E.B.); (K.T.)
| | - Eva Johansson
- Department of Plant Breeding, Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (S.T.); (R.O.); (E.J.)
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