Effects of Oil Heated with Gluten on Weight-Loss Dieting. I.

Totani, Nagao; Burenjargal, Munkhjargal; Yawata, Miho

doi:10.5650/jos.57.321

Cited by 7 publications

(9 citation statements)

References 15 publications

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“…Our approach 3,33) to creating a safe and effective oil for weight-loss dieting was that a part of the oil was not fully hydrolyzed by lipase, resulting in decreased absorption and increased amounts of excreted oil. The result from the present study proved our approach described above.…”

Section: Discussionmentioning

confidence: 99%

Effects of Thermally Processed Oil on Weight Loss in Rats

Burenjargal

Totani

2008

J. Oleo Sci.

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We have previously proposed that thermally processed oil holds promise as a dietary supplement intended for weight loss. We employed a thermal process whereby oil was heated to 180 for 10 h in the absence and presence of gluten. We compared the effects of three diets, untreated oil, heated oil, heated oil and gluten on body weight, retroperitoneal weight and lipid composition and fecal lipid contents. Ten week-old male Wistar rats were fed ad libitum a diet containing 7 wt% of the oil for 12 weeks. The oil heated with gluten showed low levels of food efficiency and oil absorption ratios, and high levels of fecal oil excretion, oil content and bile acid content. Diets containing thermally treated oils resulted in significantly lower retroperitoneal tissue weights and lipid contents as compared to the control group; the groups fed the heated oil and gluten diets showed a general decrease in the fatty acid (especially linoleic acid) amount. In conclusion, oil heated with gluten was not fully digested and thus excreted without showing any detrimental effects on either the organs or feces. This resulted in safe and effective weight loss in growing adult rats.

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Section: Discussionmentioning

confidence: 99%

Effects of Thermally Processed Oil on Weight Loss in Rats

Burenjargal

Totani

2008

J. Oleo Sci.

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“…Using a blender, the latter was mixed uniformly with 7 wt% of experimental oils and fresh oil, respectively. The three kinds of diets, thus prepared, were handled and provided as described in our paper [1][2][3][4][5][6] . All the diets were used after radio-sterilization.…”

Section: Dietsmentioning

confidence: 99%

“…We heated oil with amino acids, gluten, sucrose, or wheat starch at 180 for 20 h 1,2) . Among the oils obtained, only the oil heated with gluten had a mild odor; the others had a rancid odor.…”

Section: Introductionmentioning

confidence: 99%

Effects of Oil Heated with Gluten on Weight-Loss Dieting. II.

et al. 2008

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We previously proposed that oil heated with gluten was suitable for use as a safe oil for weightloss dieting. In the present paper, the properties of the oil were improved, and the weight-loss effect was compared with that of heated oil. Fresh oil was heated for 10 h at 180 with or without gluten and filtered using filter paper. A powdered diet (AIN93G; no fat) was mixed with 7 wt% of fresh oil (control) or filtrates of the heated oils described above, and the mixture was fed to male Wistar rats for 12 weeks. The gluten and heated oil groups showed no gross symptoms attributable to the experimental oils but had a slowed body weight increase; a significant difference was found in weight on and after 21 weeks of age as compared to rats consuming the control diet, and fecal excretion was increased as compared to the control group. Serum levels of triacylglycerol, phospholipids, cholesterol, and glucose of the gluten and heated oil groups were significantly lower than those of the control group. High aspartate aminotransferase (AST) levels occurred more frequently in the heated oil group than the gluten group. The number of rats with dark red patches on the surface of the liver, which are indicative of liver damage, was higher in the heated oil group. In conclusion, the weight-reducing effect of the oil heated with gluten was confirmed and improved by removing traces of heated gluten from the oil.

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Section: Discussionmentioning

confidence: 99%

“…Ideally, the substances should be soluble in oil and effective in very limited quantities. Soybean protein employed in the present study contained various components other than protein, but it has been confirmed 20,21) that the body weightloss promoting effects in excess of those from protein were not expected from amino acids, sucrose, and carbohydrates.Dieting oils presently marketed around the world contain Salatrim ®22) , Caprenin ®23) , Olestra ®24,25) , Econa ®26-28) and Healthy Resetta ®29-31) . Salatrim ® , Caprenin ® , and Healthy Resetta ® are triacylglycerides esterified with long and short (medium) chain fatty acids.…”

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confidence: 99%

A Novel Body Weight-loss Promoting Oil Prepared with Vegetable Protein

et al. 2010

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It has been reported that oil thermally processed with wheat gluten (gluten oil) exhibited safe weight-loss promoting effects in animal experiments. However, as the oil has a high color index, and its chemical properties and smell differ from those of fresh oil, it is uncertain if the oil will find market acceptance. In order to resolve the issue, frying oil was heated with soybean protein under reduced pressure (soybean protein oil), resulting in a product with an appearance, chemical properties and smell comparable to those of fresh oil. This improved oil was mixed (7 wt%) with powdered AIN93G no fat, defined standard diet and fed to 10-week-old Wistar rats ad libitum. The experimental rats grew normally, ingesting the same amount as that of the control rats; however, there was a negative correlation between body weight increases and fecal weight increases. After the 12-week feeding period, all the rats were sacrificed to obtain blood and organs. In the experimental group, liver weight, retroperitoneal fat tissue weight and serum triacylglycerol (TG) levels decreased significantly. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), and histological analysis supported the safety of the improved oil. In conclusion, it was found that soybean protein oil inhibited body weight increases without any adverse effects in animal experiments. The oil holds promise as a novel dieting oil that steadily decreases body weight at an appropriate rate.Key words: soybean protein, weight-loss promoting, fecal weight, serum triacylglycerol level, retroperitoneal fat tissueCorrespondence to: Nagao Totani, Department of Nutritional Physiology, Faculty of Nutrition, Kobe-Gakuin University, 518 Arise, Ikawadani-cho, Nishi-ku, Kobe, 651-2180 JAPAN E-mail: totani@nutr.kobegakuin.ac.jp Accepted September 19, 2009 (received for review May 30, 2009 One liter of fresh frying oil (Fuji Oil Co., Ltd., Osaka, Japan) was heated at 180 and 5 Torr for 10 h in a 2-L four-neck round-bottom flask under stirring with 1wt% soybean protein. Oil heated with protein was filtered over filter paper under reduced pressure (soybean protein oil) and employed for an animal experiment. Oil AnalysesPeroxide value (POV), carbonyl value (COV), acid value (AV), iodine value (IV) and Lovibond color were measured according to the Japan Oil Chemists' Society's Standard Methods for the Analysis of Fats, Oils, and Related Materials. The content of polar compounds (PC) was analyzed by a PC Tester, 3M, Saint-Ouen l'Aumone, France 3) . Triacyglycerol contents (TG) were determined by applying samples on Chromarods followed by development in a solvent mixture, hexane/diethyl ether/acetic acid, 50:10:1 v/v/v, and quantification with Iatroscan MK-6s, Iatron Laboratories, Inc., Tokyo, Japan. After esterification of oil with diazomethane for possible free fatty acids and then with sodium methoxide for triacylglycerol, oil was analyzed by Shimadzu GC-2010 gas chromatograph equipped with 60-m SP TM -2340 capillary column of 0.25 mm bore, Supelco, St. Lo...

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Effects of Oil Heated with Gluten on Weight-Loss Dieting. I.

Cited by 7 publications

References 15 publications

Effects of Thermally Processed Oil on Weight Loss in Rats

Effects of Thermally Processed Oil on Weight Loss in Rats

Effects of Oil Heated with Gluten on Weight-Loss Dieting. II.

A Novel Body Weight-loss Promoting Oil Prepared with Vegetable Protein

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