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Journal of Oleo Science

Tadayoshi Miyashita, Kazuhiro Minami, Minoru Ito, Ryosuke Koizumi, Yoshimasa Sagane, Toshihiro Watanabe, Koichi Niwa
Emu is the second-largest extant bird native to Australia. Emu oil, obtained from the emu's fat deposits, is used as an ingredient in cosmetic skincare products. Emu oil has been reported to improve several inflammatory symptoms; however, the mechanisms of these anti-inflammatory effects are largely unknown. This study investigated the effects of emu oil on the inflammatory macrophage response in vitro. A murine macrophage cell line, RAW 264, was incubated in culture media supplemented with or without emu oil and stimulated with lipopolysaccharide (LPS)...
March 9, 2018: Journal of Oleo Science
Xue Li, Jun Cao, Xinpeng Bai, Zefang Jiang, Xuanri Shen
Human milk fat substitutes (HMFS) are rich in polyunsaturated fatty acids which upon microencapsulation, can be used as a source of high quality lipids in infant formula. The response surface methodology (RSM) was employed to optimize the microencapsulation condition of HMFS as a functional product. The microencapsulation efficiency (MEE) of microencapsulated HMFS was investigated with respect to four variables including concentration of soy lecithin (A), ratio of demineralized whey powder to malt dextrin (B), HFMS concentration (C), and homogenizing pressure (D)...
March 9, 2018: Journal of Oleo Science
Biow Ing Sim, Halimah Muhamad, Oi Ming Lai, Faridah Abas, Chee Beng Yeoh, Imededdine Arbi Nehdi, Yih Phing Khor, Chin Ping Tan
This paper examines the interactions of degumming and bleaching processes as well as their influences on the formation of 3-monochloropropane-1,2-diol esters (3-MCPDE) and glycidyl esters in refined, bleached and deodorized palm oil by using D-optimal design. Water degumming effectively reduced the 3-MCPDE content up to 50%. Acid activated bleaching earth had a greater effect on 3-MCPDE reduction compared to natural bleaching earth and acid activated bleaching earth with neutral pH, indicating that performance and adsorption capacities of bleaching earth are the predominant factors in the removal of esters, rather than its acidity profile...
March 9, 2018: Journal of Oleo Science
Jie Cai, Qiu-Yun Zhang, Fang-Fang Wei, Jin-Shu Huang, Yun-Mei Feng, Hai-Tao Ma, Yutao- Zhang
Copper (II) containing phosphomolybdic acid (PMA) catalysts were synthesized by ion exchange method and characterization using various physico-chemical techniques such as X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), thermogravimetric (TG) and scanning electron microscopy (SEM). The characterization results showed that the Keggin ions were retained in the catalysts and possessed well thermal stability. The catalytic esterification of lauric acid with methanol could be easily achieved about 78...
March 9, 2018: Journal of Oleo Science
Phiwe Charles Jiyane, Kaniki Tumba, Paul Musonge
The extraction of oil from Croton gratissimus seeds was studied using the three-factor five-level full-factorial central composite rotatable design (CCRD) of the response surface methodology (RSM). The effect of the three factors selected, viz., extraction time, extraction temperature and solvent-to-feed ratio on the extraction oil yield was investigated when n-hexane and ethyl acetate were used as extraction solvents. The coefficients of determination (R2 ) of the models developed were 0.98 for n-hexane extraction and 0...
March 9, 2018: Journal of Oleo Science
Kai-Min Yang, Fu-Lan Hsu, Chih-Wei Chen, Chin-Lin Hsu, Ming-Ching Cheng
In this study, the effects of roasting camellia (Camellia oleifera Abel.) seed oils at different temperatures (65°C, 100°C, 120°C, and 140°C) on the oxidative stability and composition of the oils were investigated. The results showed that, in terms of the quality of the oils, the roasting temperature influenced the total phenolic content (which ranged from 1.64~2.45 GAE mg/g for the different oils) and total flavonoid content (which ranged from 0.36~0.45 QE mg/g for the different oils), while the fatty acid profile and tocopherol content were not influenced by the roasting temperature...
March 9, 2018: Journal of Oleo Science
Masaaki Konishi, Tomotake Morita, Tokuma Fukuoka, Tomohiro Imura, Shingo Uemura, Hiroyuki Iwabuchi, Dai Kitamoto
We discovered that Candida floricola ZM1502 is capable of selectively producing the promising hydrophilic biosurfactants, acid-form sophorolipids (SLs), from glycerol. However, productivity was very low (approximately 3.5 g L-1 ) under the initial culture conditions. Here, we describe the design of culture medium for abundant production of acid-form SLs by C. floricola ZM1502 using waste glycerol and hydrophobic substrates in order to develop a method for SL production and disposal of waste glycerol produced by oleo-chemical industries...
March 9, 2018: Journal of Oleo Science
Ananda Kafle, Takeshi Misono, Avinash Bhadani, Masaaki Akamatsu, Kenichi Sakai, Chihiro Kaise, Teruhisa Kaneko, Hideki Sakai
We have studied the phase behavior of distearoylphosphatidylcholine (DSPC) in the presence of sodium β-sitosteryl sulfate (PSO4 ). PSO4 was found to induce sterol-rich and sterol-poor domains in the DSPC membrane. These two domains constitute a fluid, liquid ordered (Lo ) phase and a gel (Lβ ) phase. PSO4 was less miscible in DSPC than in a dipalmitoylphosphatidylcholine (DPPC) membrane, as evidenced by its tendency to separate from the bilayer at a concentration of 50 mol%. This lack of miscibility was attributed to the greater van der Waals forces between the PC hydrocarbon chains...
March 9, 2018: Journal of Oleo Science
Song Min Cao, Yan Yan Wu, Lai Hao Li, Xian Qing Yang, Sheng Jun Chen, Xiao Hu, Hai Xia Ma
There is increasing demand for low-salt meat products that retain traditional flavors. In this study, dry-salted fish (Decapterus maruadsi) were processed by 2 methods to obtain traditional salted fish (HS) and low-salt lactic acid-fermented fish (LAF). The relationship between lipolysis and lipid oxidation was investigated by evaluating changes in endogenous lipase (lipolytic enzymes; lipoxygenase, LOX), free fatty acid composition, thiobarbituric acid reactive substances (TBARS), and peroxide value (POV) during processing...
March 9, 2018: Journal of Oleo Science
Mariko Yokota, Shoichi Yahagi, Yoshihiro Tokudome, Hitoshi Masaki
Alkyl glyceryl ethers (AKGs) are widely used as emulsion stabilizers, and their anti-inflammatory effects are well known. Daily exposure to environmental stresses, such as chemicals, low humidity and ultraviolet light (UV), can initiate and promote the development of various skin problems. Among those stresses, it has been established that UV induces skin pigmentation and accelerates premature skin aging due to the inflammation that results. Here, we investigated whether chimyl alcohol (CA), which is an AKG, suppresses the inflammatory process...
March 9, 2018: Journal of Oleo Science
Wei Liu, Qi Zhao, Luyang Lv, Suo Yan, Qin Song, Tian Chen, Qian Yao
Pomegranate seed oil (PSO) is primarily composed of unsaturated fatty acids, implying its potential application as a transdermal enhancer. In this study, the function of PSO in prompting the percutaneous absorption of resveratrol was examined and compared with isopropyl palmitate (IP). IP of 10% enhanced the cumulative permeation amount of resveratrol by 50% but did not influence the permeation velocity. Though 2.5% and 5.0% IP accelerated the penetration process of resveratrol, they had no discernable impact on total permeation amount...
March 9, 2018: Journal of Oleo Science
Hédia Manai-Djebali, Imen Oueslati, Manuel A Martínez-Cañas, Mokhtar Zarrouk, Jacinto Sánchez-Casas
The chemical composition of extra virgin olive oils (EVOOs) from six new progenies, obtained through controlled crossings between the main Tunisian variety Chemlali and autochthonous (Chemcheli) and foreign cultivars (Sigoise, Coratina, Koroneiki, and Arbequina) used as pollen acceptor or pollinator, were compared with the EVOO of Chemlali cultivar known to be the main one cultivated in Tunisia as it is the most adapted to the arid climate. Several analytical determinations of major and minor components of EVOO were employed, especially triacylglycerol and sterol fractions...
March 9, 2018: Journal of Oleo Science
Eiichi Toorisaka, Yumi Nonaka
A new emulsification technique using porous silica particles was studied as a facile and instantaneous formation method for thermodynamically unstable emulsions. In this study, oil encapsulated in silica particles was released instantly upon the addition of a phosphate buffer, forming an oil-in-water (O/W) emulsion. Emulsion formation was inhibited or promoted using lipophilic or hydrophilic surfactant additives, respectively. We concluded that this phenomenon is affected by the wettability of the soybean oil on the silica surface, which is controlled by the surfactant...
February 19, 2018: Journal of Oleo Science
Hiroko Abe, Mika Ishioka, Yasuko Fujita, Aya Umeno, Mayu Yasunaga, Akihiko Sato, Shigehiko Ohnishi, Shingo Suzuki, Noriko Ishida, Mototada Shichiri, Yasukazu Yoshida, Yoshihiro Nakajima
Ulcerative colitis is a well-known inflammatory bowel disease. Although there are drugs that are effective against this disease, the prevention and attenuation of ulcerative colitis by food rich in functional ingredients without side effects is desired because some drugs have side effects. In this study, we investigated the effects of yuzu (Citrus junos Tanaka), a citrus fruit native to northeast Asia, on a mouse dextran sulfate sodium (DSS)-induced colitis model. Mice given drinking water containing DSS showed significant weight loss, colon shortening, diarrhea, and visible fecal blood...
February 19, 2018: Journal of Oleo Science
Hang Lu, Li Zhang, Hui Zhao, Jingjing Li, Hailin You, Lu Jiang, Jianen Hu
The biological activities of phospholipids (PLs) have attracted people's attention, especially marine phospholipids with omega-3 polyunsaturated fatty acids DHA and EPA. In this study, we investigated the immunity activation of macrophages in vitro by phospholipids from skipjack brain. The phospholipids were extracted with hexane and ethanol ultrasonication instead of the traditional method of methanol and chloroform. The content of phospholipids from Skipjack brain was 19.59 g/kg by the method (the ratio of hexane and ethanol 2:1, 40 min, 35°C, 1:9 of the ratio of material to solvent, ultrasonic power 300W, ultrasonic extraction 2 times)...
February 19, 2018: Journal of Oleo Science
Titiya Meechai, Sasinida Kongchamdee, Win Win Mar, Ekasith Somsook
A new method for utilization of hydrogel is proposed here for the preparation of solid base catalysts for the transesterification of vegetable oil. When a solution of KF is mixed with a solution of Ca(NO3 )2 , CaF2 is obtained and inactive as a catalyst in the transesterification of vegetable oils. The catalysts were synthesized by the sequential incorporation of KF and/or Ca(NO3 )2 solutions into the hydrogel upon microwave irradiation and then the as-obtained hydrogel was calcined at 800°C for 5 hours to eliminate the template and yield catalysts for the biodiesel productions...
February 19, 2018: Journal of Oleo Science
Chih-Fang Wen, Yu-Ling Hsieh, Chun-Wei Wang, Tzung-Ying Yang, Chien-Hsiang Chang, Yu-Min Yang
Ion-pair amphiphiles (IPAs, also known as catanionic surfactants) are lipid-like double-chained molecules potentially used for fabricating liposome-like vesicular drug and gene carriers. Frequently ethanol and cholesterol are added to modulate the properties of their bilayer membranes. Effects of ethanol and cholesterol on the fundamental properties of IPA bilayers such as thermotropic phase behavior, however, is not known. In this work, the bilayer phase transition behavior of two IPAs (decyltrimethylammonium-tetradecyl sulfate, DeTMA-TS, and dodecyltrimethylammonium-dodecyl sulfate, DTMA-DS) in tris buffer with various amounts of ethanol was studied by using differential scanning calorimetry (DSC)...
February 19, 2018: Journal of Oleo Science
Zhen-Shan Zhang, Yu-Lan Liu, Li-Ming Che
Supercritical carbon dioxide extraction (SC-CO2 ) technology was used to extract oil from Eucommia ulmoides seed. The optimum conditions and significant parameters in SC-CO2 were obtained using response surface methodology (RSM). The qualities of the extracted oil were evaluated by physicochemical properties, fatty acid composition, vitamin E composition. It was found that the optimum extraction parameters were at pressure of 37 MPa, temperature of 40℃, extraction time of 125 min and CO2 flow rate of 2.6 SL/min...
February 19, 2018: Journal of Oleo Science
Takamasa Watanabe, Takahiro Kawai, Yoshimune Nonomura
Adding fatty acids to an oil-in-water (O/W) emulsion changes the stability of the emulsion. In this study, we prepared a series of O/W emulsions consisting of oil (triolein/fatty acid mixture), water and a range of surfactants (sucrose fatty acid esters) with varying hydrophilic-lipophilic balance (HLB) in order to determine the effects of alkyl chain length and the degree of unsaturation of the fatty acid molecules on the stability of the emulsions. As a result, sucrose fatty acid esters with HLB = 5-7 were suitable for obtaining O/W emulsions...
February 19, 2018: Journal of Oleo Science
Naohiro Gotoh, Satoshi Kagiono, Kazuaki Yoshinaga, Hoyo Mizobe, Toshiharu Nagai, Akihiko Yoshida, Fumiaki Beppu, Koji Nagao
The intake of trans fatty acids (TFAs) in foods changes the ratio of low density lipoprotein (LDL) to high density lipoprotein (HDL) cholesterol in blood, which causes cardiovascular disease. TFAs are formed by trans isomerization of unsaturated fatty acids (UFAs). The most recognized formation mechanisms of TFAs are hydrogenation of liquid oil to form partially hydrogenated oil (PHO,) and biohydrogenation of UFAs to form TFA in ruminants. Heating oil also forms TFAs; however, the mechanism of formation, and the TFA isomers formed have not been well investigated...
February 19, 2018: Journal of Oleo Science
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