Read by QxMD icon Read

Journal of Oleo Science

Aydan H Yatmaz, Tetsuaki Kinoshita, Akio Miyazato, Masahiro Takagi, Yoshio Tsujino, Fumiaki Beppu, Naohiro Gotoh
Vinegar is a widely used condiment in the world, and is produced from ethanol by acetic acid fermentation. Different fruits, vegetables, cereals, and wines can be used as ingredients for vinegar production. It is known that vinegar has many nutrient components such as organic acids, polyphenols, and aromatic compounds. Because of these bioactive components, it has many health benefits. China has a long history of producing vinegar and has been using it for health products and as medicine. Chinese aromatic Zhenjiang vinegar (Kozu) is produced from sticky rice...
November 13, 2017: Journal of Oleo Science
Nobuya Shirai
This study investigated the in vitro and in vivo effects of Sunrouge (SR), which is an anthocyaninrich green tea. Hot and cold water extracts (CWEX) of Yabukita (YK; regular green tea), SR second crop (SR2), and SR third crop (SR3) were prepared. The 50% inhibitory concentrations for YK, SR2, and SR3 CWEXs against pancreatic lipase in vitro were 12.3±2.8, 6.2±0.3, and 4.0±1.1 mg/mL, respectively. Epigallocatechin gallate (EGCG) accounted for 4.3%, 6.0%, and 6.3% of YK, SR2, and SR3 CWEXs, respectively. SR2 had the highest anthocyanin content of these three samples...
November 13, 2017: Journal of Oleo Science
Toshiharu Nagai, Keiko Ishikawa, Kazuaki Yoshinaga, Akihiko Yoshida, Fumiaki Beppu, Naohiro Gotoh
The composition of triacylglycerol (TAG) positional isomer (-PI) and enantiomer (-E) in immature chicken egg yolk, mature chicken yolk, and chicken meat was examined. POO (consisting of one palmitic acid (P) and two oleic acids (Os)), PPO (consisting of two Ps and one O), and PPL (consisting of two Ps and one linoleic acid (L)) were treated as representative TAG molecular species in all the analytical samples because P, O, and L were the major fatty acids comprising egg and chicken meat. sn-POO (binding P at sn-1 position) was predominant in egg yolks, while sn-OOP and sn-OPO were present in chicken meat...
November 13, 2017: Journal of Oleo Science
Masaaki Konishi, Tomotake Morita, Tokuma Fukuoka, Tomohiro Imura, Shingo Uemura, Hiroyuki Iwabuchi, Dai Kitamoto
Biosurfactants (BSs) are produced in abundance from various feedstocks by diverse microorganisms, and are used in various applications. In this paper, we describe a new yeast isolate that produces glycolipid-BSs from glycerol, with the aim of enhancing the utilization of the surplus glycerol produced by the oleo-chemical industry. As a result of the screening, strain ZM1502 was obtained as a potential producer of BS from glycerol. Based on TLC analysis, the strain produced glycolipid BSs. According to structural analyses (NMR, MALDI-TOF MS, and GC-MS), the main component of the glycolipids was 6',6"-di-O-acetylated acid-form sophorolipid (SL)...
November 13, 2017: Journal of Oleo Science
Yukina Takano, Tsuyoshi Asakawa, Mayumi Inai, Akio Ohta, Hitoshi Asakawa
Disulfide linked gemini surfactant having a long spacer chain, [C10H21N(CH3)2(CH2)11SS(CH2)11N (CH3)2C10H21]2Br (2C1011SS), was prepared by the hydrolysis and oxidation process of thioester group for [C10H21N(CH3)2(CH2)11SCOCH3]Br. The critical vesicle concentrations of double tailed surfactants such as dialkyldimethylammonium bromide were observed by the conductivity and light scattering methods. The disulfide bonds of gemini surfactant, [C12H25N(CH3)2CH2CH2SSCH2CH2N(CH3)2C12H25]2Br (2C12SS), were rapidly cleaved by the addition of water-soluble dithiothreitol...
November 13, 2017: Journal of Oleo Science
Nakyung Choi, Heejin Kim, Byung Hee Kim, Junsoo Lee, In-Hwan Kim
The synthesis of phytosteryl ester via the lipase-catalyzed esterification of phytosterol with fatty acid from echium oil was performed in a recirculating packed bed reactor. A commercial lipase from Candida rugosa was immobilized and then used to optimize the reaction conditions for the synthesis of the phytosteryl ester. The parameters investigated were temperature, molar ratio of phytosterol to fatty acid, retention time, and amount of solvent. The optimum conditions were determined as the temperature of 40°C, the molar ratio of 1:3 (phytosterol to fatty acid), the retention time of 3 min, and the solvent amount of 40 mL...
November 13, 2017: Journal of Oleo Science
Huanan Du, Xu Zhang, Ruchun Zhang, Lu Zhang, Dianyu Yu, Lianzhou Jiang
Rosa acicularis seed oil was extracted from Rosa acicularis seeds by the ultrasonic-assisted aqueous enzymatic method using cellulase and protease. Based on a single experiment, Plackett-Burman design was applied to ultrasonic-assisted aqueous enzymatic extraction of wild rose seed oil. The effects of enzyme amount, hydrolysis temperature and initial pH on total extraction rate of wild rose seed oil was studied by using Box-Behnken optimize methodology. Chemical characteristics of a sample of Rosa acicularis seeds and Rosa acicularis seed oil were characterized in this work...
November 13, 2017: Journal of Oleo Science
Yoshiharu Okuno, Shinsuke Marumoto, Mitsuo Miyazawa
The compositions of the essential oils from three kinds of Cryptotaenia japonica Hassk ("Mitsuba" in Japanese, Kirimitsuba (KM), Nemitsuba (NM), and Itomitsuba (IM)) were investigated by capillary GC/GC-MS. The oils contained 53 volatile components, of which 95% were terpenoids. The major constituents were sesquiterpenoids, which were α-selinene (KM: 39.1%; NM: 38.4%; IM: 13.2%), β-selinene (15.5%, 15.2%, 4.8%), germacrene D (12.1%, 7.2%, 24.1%), trans-farnesene (11.1%, 6.0%, 10.9%), β-elemene (2.9%, 2.9%, 6...
October 11, 2017: Journal of Oleo Science
Fumiaki Beppu, Keiko Yasuda, Ayako Okada, Yoshitsugu Hirosaki, Masako Okazaki, Naohiro Gotoh
Highly unsaturated fatty acid (HUFA) binding at the sn-2 position of phospholipids (PL) becomes a resource for prostaglandin, leukotriene, resolvin, and protectin synthesis. Both triacylglycerol (TAG) and PL synthesis pathways in vivo are via phosphatidic acid; therefore, the distribution of fatty acid species at the sn-2 position must theoretically be the same for TAG and PL if rearrangement does not occur. However, it is known that little HUFA is located at the sn-2 position of TAG in marine mammals. Therefore, distribution of fatty acid species at the sn-2 position of TAG and PL was compared between marine fishes and mammals in this study...
October 11, 2017: Journal of Oleo Science
Junji Matsuoka, Takumi Kusano, Yuuki Kasama, Etsuko Tominaga, Junya Kobayashi, Wataru Fujii, Hiroki Iwase, Mitsuhiro Shibayama, Hironobu Nanbu
The structures of micelles and microemulsions consisting of polyglycerol polyricinoleate (PGPR) were investigated by small-angle X-ray scattering (SAXS) and rheological measurements. The SAXS results show that amphiphilic PGPR molecules form stable micelles in glycerol. When vitamin E is added to the PGPR micelles, it is encapsulated in the micelles and forms an emulsion. These micelles are stable towards mechanical shearing up to a shear rate of 1000 s(-1), with shear thinning occurring in the emulsion above 100 s(-1), indicating that the emulsion may undergo break up by shearing, but recovers the structure by releasing shear strain...
October 11, 2017: Journal of Oleo Science
Marina Komuro, Naoki Shimizu, Ryo Onuma, Yurika Otoki, Junya Ito, Shunji Kato, Ohki Higuchi, Keiichi Sudo, Seiichiro Suzuki, Teruo Miyazawa, Takahiro Eitsuka, Kiyotaka Nakagawa
Lutein, a type of xanthophyll, possesses antioxidative properties that contribute to the prevention of various diseases. Preliminary screening has shown that Japanese mugwort (Artemisia princeps Pamp.) contains high amounts of lutein. In this study, we evaluated the lutein concentration in a processed mugwort product (mugwort paste). By using high-performance liquid chromatography coupled with visible light detection or mass spectrometry, the lutein concentration in mugwort paste was determined as 38 mg/100 g dry weight, which indicates that mugwort is a potentially valuable natural food source of lutein...
October 11, 2017: Journal of Oleo Science
Tatsuo Aikawa, Kanta Sato, Hiroki Okado, Yukako Takahashi, Takeshi Kondo, Makoto Yuasa
A liposome is a molecular assembly in the form of a vesicle comprised of a phospholipid bilayer. Liposomes can be used as molecular containers in various fields such as pharmaceutical, cosmetic, and food industries. It is difficult to maintain the original structure of liposomes in an aqueous medium. Phospholipids, which are components of liposomes, are susceptible to hydrolysis, which causes disruption of the liposomal structure and dysfunction of the molecular container. In this context, freeze-drying liposomes is a preferable method to improve the shelf life of liposomes...
October 11, 2017: Journal of Oleo Science
Angélica A Ochoa-Flores, Josafat A Hernández-Becerra, Adriana Cavazos-Garduño, Eduardo J Vernon-Carter, Hugo S García
Structured phosphatidylcholine was successfully produced by acidolysis between phosphatidylcholine and free medium chain fatty acid, using phospholipase A1 immobilized on Duolite A568. Response surface methodology was applied to optimize the reaction system using three process parameters: molar ratio of substrates (phosphatidylcholine to free medium chain fatty acid), enzyme loading, and reaction temperature. All parameters evaluated showed linear and quadratic significant effects on the production of modified phosphatidylcholine; molar ratio of substrates contributed positively, but temperature influenced negatively...
October 11, 2017: Journal of Oleo Science
Wei-Han Chang, Yun-Ting Chuang, Cheng-Yeh Yu, Chien-Hsiang Chang, Yu-Min Yang
The incorporation of additive in lipid bilayers is one of the ordinary approaches for modulating their properties. Additive effect on phase transition of ion-pair amphiphile (IPA) bilayers, however, is not known. In this work, four double-chained IPAs with different hydrocarbon chain lengths and symmetry were designed and synthesized from single-chained cationic and anionic surfactants by the precipitation method. By using differential scanning calorimetry (DSC), the thermotropic transition behavior from gel phase (Lβ) through rippled phase (Pβ') if any to liquid-crystalline phase (Lα) was studied for bilayers of these lipid-like IPAs in excess water...
October 11, 2017: Journal of Oleo Science
Hanaa M Soliman, Shaker M Arafat, Amany M Basuny, Y El- Shattory
A new amphiphilic antioxidant (tannyl stearate) derived from reaction of tannic acid with stearic acid was synthesized in order to improve tannic acid solubility in lipid materials. This reaction gives many products having different degree of esterification (tannyl mono, di, tri, tetra, penta, hexa, hepta……stearate) which were separated using silica gel column chromatography and tentative identification was carried out using thin layer chromatography (TLC). The intrinsic viscosities (η) were used to differentiate between the different molecular weight of the produced esters(1))...
October 11, 2017: Journal of Oleo Science
Megumi Kaji, Yuichiro Takeyama, Atsushi Nioh, Moe Tsuyuki, Hidetaka Akatsuka, Sari Fujiwara, Kenichi Sakai, Hideki Sakai
The surface morphology of a cosmetic film consisting of an amphiphilic random copolymer (methoxy polyethylene glycol-23 methacrylate/glyceryl diisostearate methacrylate copolymer, MPM-GDM) and solvents has been studied. The cosmetic film was prepared through the evaporation of water from a homogeneous aqueous mixture of MPM-GDM, xanthan gum, and solvents. MPM-GDM was soluble in water, monohydric alcohols, and 1,3-butylene glycol (1,3-BG), whereas it hardly dissolved in glycerin. The surface morphology was examined by changing the solvent composition of 1,3-BG (good solvent) and glycerin (poor solvent)...
October 11, 2017: Journal of Oleo Science
Akifumi Hosoda, Yuta Isomura, Syungo Takeo, Takuho Onai, Kazutaka Takeuchi, Minoru Toda, Hiroto Tamura
It is important to construct microbiological treatment systems for organic solvent-contaminated water. We developed a continuous culture supplemented with a biostimulation agent named BD-C, which is formulated from canola oil, and Xanthobacter autotrophicus strain GJ10 for an aerobic dichloromethane (DCM)-dechlorinating microorganism. The continuous culture was a chemostat constructed using a 1 L screw-capped bottle containing artificial wastewater medium with 2.0 mM DCM and 1.0% (v/v) BD-C. The expression of genes for DCM metabolism in the dechlorinating aerobe was monitored and analyzed by reverse transcription-quantitative PCR...
October 11, 2017: Journal of Oleo Science
Kamal Kumar Bhardwaj, Reena Gupta
Pure enantiomers can be produced by chemical and enzymatic methods. Enzymatic methods to produce pure enantiomers are more advantageous. High enantiomeric excess is the advantage of enzymatic method, resulting from the inherent selectivity of the enzyme. Lipase (EC enzymes are widely used for the synthesis of chirally pure enantiomers because of their stereoselectivities which can satisfy the growing demand for obtaining optically active compounds. Various methods are used for the synthesis of chirally pure enantiomers, however kinetic resolution and asymmetric synthesis are more common...
October 1, 2017: Journal of Oleo Science
Yanzhu Tian, Ami Katsuki, Donato Romanazzi, Matthew R Miller, Serean L Adams, Kazuo Miyashita, Masashi Hosokawa
Docosapentaenoic acid (22:5n-3, n-3 DPA) is a n-3 polyunsaturated fatty acid (PUFA) found in fish oil, and has been reported to have health benefits. This study investigated conversion of n-3 DPA, and examined the anti-inflammatory effects of n-3 DPA on activated macrophages. Murine macrophage-like RAW264.7 cells were incubated in culture media containing n-3 DPA for 72 h. The level of n-3 DPA in the fatty acid composition of the total lipid fraction increased in a dose-dependent manner. Furthermore, the levels of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) were higher in treated cells than in control cells...
October 1, 2017: Journal of Oleo Science
Georgina P Ossani, Ariel R Marcotegui, Ana M Uceda, Alberto J Monserrat, Nestor R Lago, Juan C Perazzo
Renal necrosis can be induced in weanling rats due to choline deficient diet. Menhaden oil has a protective effect against the development of renal necrosis in choline deficient weanling rats. The aim of this work was to determine the effects of menhaden oil in a model of acute kidney injury due to ischemia reperfusion. Wistar rats were divided into two groups and fed vegetable oils or menhaden oil as lipids. Unilateral renal ischemia was performed for 30 minutes and animals were sacrificed 48 hours later. Histopathological examination showed no significant differences between groups...
October 1, 2017: Journal of Oleo Science
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"