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Volume 45 (1992)
- Issue 6 Pages 479-
- Issue 5 Pages 393-
- Issue 4 Pages 303-
- Issue 3 Pages 209-
- Issue 2 Pages 95-
- Issue 1 Pages 1-
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Volume 45, Issue 6
Displaying 1-15 of 15 articles from this issue
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Michiko WATANABE1992 Volume 45 Issue 6 Pages 479-484
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
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Munehiro YOSHIDA1992 Volume 45 Issue 6 Pages 485-494
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
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Seasonal Variations in Work Load, Food Consumption and Physiological Condition in Greenhouse FarmersNaoko KITANO, Tsukasa INAOKA, Takao KITANO, Takeaki INOMOTO, Hiroko SH ...1992 Volume 45 Issue 6 Pages 495-506
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSWork load, food consumption and physiological condition of greenhouse farmers (5 and 10 husbandwife couples growing tomatoes and strawberries respectively) were compared with those of sedentary office workers (9 couples) during 4 periods: harvest (April), post-harvest (July), pre-harvest (November) and 2nd harvest (the following March) in a town near Kumamoto. In the busiest harvest seasons, tomato- and strawberry-growing males worked for more than 700 and 840 min, respectively. However, their daily energy expenditures estimated by 24-h heart rate monitoring were about 2, 800 and 3, 000 kcal, respectively, which seemed not unduly high because of the low energy cost of each harvestrelated activity. Their wives had to perform household chores as well as their work. The farmers consumed more food than their controls, irrespective of season or sex, and energy intake exceeded expenditure except for male farmers in the harvest season. The strawberry-growing males showed a tendency to obtain excess energy and protein throughout the year, and the association of this with higher body fat and weight and blood pressure than in the controls was suspected.View full abstractDownload PDF (1986K) -
Kanehisa MURAO, Kazumi IGAKI, Hiroko HASEBE, Tsutomu KANEKO, Hideki SU ...1992 Volume 45 Issue 6 Pages 507-512
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSBreath hydrogen excretion was measured in 30 lactose-intolerant subject after ingesting 300ml of milk (lactose, 14g) and 500ml of yogurt (lactose, 14-16g). The mean maximum increase in breath hydrogen concentration after milk ingestion was 150 ppm (SD, 70 ppm). However it was considerably lower after ingestion of yogurt [32 ppm (SD, 33 ppm)] . Ingestion of yogurt by the subjects resulted in alleviation of abdominal symptoms such as diarrhea, abdominal pain, borborygmus and abdominal distention. A study of lactose hydrolysis using a simulated gastrointestinal digestion model showed that about 51% of lactose in yogurt was hydrolyzed after 6h incubation. In addition, it was found that microbial β-galactosidase [EC. 3. 2. 1. 23] in yogurt was finally inactivated when the gastric pH was lowered to below about 2.0, and that the enzyme was able to hydrolyze lactose in the intestine if it was not inactivated in the stomach. β-Galactosidase activity in typical yogurt prepared using Lactobacillus delbrueckii subsp. bulgaricus 2038 and Streptococcus salivarius subsp. thermophilus 1131 was 3.65U/ml, and it was not reduced markedly after the storage at 5°C for 15 days (2.74 U/ml).View full abstractDownload PDF (1042K) -
Souichiro SEKIYA, Yoshio KOBAYASHI, Eiichi KITA, Yoshimi IMAMURA, Seii ...1992 Volume 45 Issue 6 Pages 513-517
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSAntihypertensive effects of a tryptic hydrolysate of milk casein were studied in normotensive and mildly hypertensive volunteers. Blood pressure, pulse rate and clinical laboratory data after oral administration of the tryptic hydrolysate were investigated. In the first study of 4 subjects with normal blood pressure, 20g and 40g of the tryptic hydrolysate given as a single dose did not change blood pressure or pulse rate. In the second study of 4 subjucts with mild hypertension, 10 g and 20g of the tryptic hydrolysate given as a single dose tended to reduce blood pressure but did not change the pulse rate. In the third study of 18 subjects with mild hypertension, 10g of the tryptic hydrolysate given twice a day for 4 weeks reduced blood pressure by 4.6mmHg/6.6mmHg significantly (p<0.01), but did not change the pulse rate. There were no objective or subjective unfavorable side effects throughout the studies. These results suggest the usefulness of the tryptic hydrolysate as an ingredient of physiologically functional food to prevent hypertension.View full abstractDownload PDF (1073K) -
Takashi SHIMADA, Kouichi IWATANI, Takaharu YANAGISAWA, Yasuo KAWAI, Sh ...1992 Volume 45 Issue 6 Pages 519-522
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSThe activity of heat-treated cells of Enterococcus faecalis FK-23 (FK-23 preparation) isolated fromthe intestine of a healthy human on systolic blood pressure (SBP) was investigated in spontaneously hypertensive rats (SHR). A significant reduction of high SBP was observed after oral administration of the FK-23 preparation for 7 days at 60 or 120mg/day·rat. SBP ramained blow 200-210mmHg, which was significantly lower than that of the control group (220-230mmHg), over 21 consecutive days of oral administration (p<0.05). This antihypertensive activity was dose-dependent, and the SBP rose again to the control level 14 days after cessation of FK-23 administration. Twenty-eight days of FK-23 administration at 120mg/day·rat followed by 270 days at 240mg/day·rat resulted in an uninterrupted reduction of high SBP. At autopsy, the control group had myocardial hypertrophy whereas the FK-23 preparation-treated group did not. These data indicate that oral administration of this FK-23 preparation may reduce SBP dosedependently over a long period and may prevent the accompanying myocardial hypertrophy.View full abstractDownload PDF (783K) -
Takeshi TAKAKU, Hiromichi OKUDA, Nobuji MAEDA1992 Volume 45 Issue 6 Pages 523-527
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSExtracellular fluid pH in the anterior tibial muscle of rats was estimated using a pH monitor with a temperature corrector. When the thigh artery was compressed with a finger to stop the blood flow around the anterior tibial muscle, the pH of the extracellular fluid showed a rapid reduction and recovered immediately after release of pressure. Inhalation of carbon dioxide also reduced the extracellular fluid pH. These results suggest that reduction of the extracellular fluid pH due to disturbance of blood circulation may be due to accumulation of carbon dioxide produced by the muscle. In addition, it was found that the extracellular fluid pH of diabetic rats was significantly reduced as compared to that of control rats. Oral administration of rice vinegar (kurozu) increased the extracellular fluid pH of diabetic rats slightly but significantly. The physiological significance of this reduction of extracellular fluid pH is discussed in relation to inhibition of insulin action.View full abstractDownload PDF (1099K) -
Satoko TAKASAKI, Yoshio KAJIWARA, Katsuaki KITABATAKE1992 Volume 45 Issue 6 Pages 529-534
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSThe effect of dried yeast on iron-deficiency anemia was studied in pregnant rats. Female Wistar rats weighing about 200g were mated. During gestation, the animals were fed purified control or 25% dried yeast diets containing 2.5 or 5.0mg Fe/100g. Red blood cell counts, hemoglobin and hematocrit decreased with the progress of pregnancy. Pregnant rats had significantly lower iron contents in the serum, liver and spleen on day 21 of pregnancy than nonpregnant rats. Thus, iron-deficiency anemia was apparently produced by feeding the low-iron diet to pregnant rats. However, pregnant rats fed the 25% dried yeast diet had significantly higher hematological values, and serum and storage iron values than those fed the control diet. Pregnant rats fed the 25% dried yeast diet showed an increased reticulocyte count on day 14 of pregnancy, in contrast to those fed the control diet. On the other hand, litter size, the number of placentas and fetal iron content on day 21 of pregnancy were not significantly different among the groups. These results suggest that injected administration of dried yeast could be useful for treatment of iron-deficiency anemia in pregnant rats.View full abstractDownload PDF (1171K) -
Kazue ITOH, Atsuko MASUDA, Keiko UEZONO, Terukazu KAWASAKI1992 Volume 45 Issue 6 Pages 535-543
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSWe developed a simple questionnaire method for estimation of individual daily nutrient intake, and compared it with the weighing method within one group of participants. Estimates of the amounts rice, bread, potatoes, green vegetables and meat consumed were the same for each method. Energy, protein, fiber, calcium and potassium intake was also the same. However, estimates of fat, iron, sodium and vitamin A, B1 and C intake were significantly lower for the simple questionnaire method than the actual intakes determined by the weighing method. Urinary excretion rates of sodium and potassium were 81.0%, and 86.9%, respectively. The correlation coefficients for energy intake and protein intake between the two methods were 0.759 (p<0.001) and 0.586 (p<0.001), respectively. These results suggest that the simple questionnaire method can be applied to extensive epidemiological studies and to individual surveys for estimation of daily nutrient intake.View full abstractDownload PDF (1806K) -
Kimio NISHIMURA, Noriko YOSHIDA, Kimiko KOSAKA1992 Volume 45 Issue 6 Pages 545-550
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSKonatsu is a local orange grown in Kochi Prefecture, and its edible portion includes not only the flesh but also the mesocarp. The amount of total dietary fiber (DF) per 100g of the edible portion of konatsu (1.9g) was higher than that of mandarin orange (1.0g) or grapefruit (0.9g), and the ratio of insoluble to soluble DF was about 2 (konatsu), 1 (mandarin orange) and 0.3 (grapefruit). The amount of Ca adsorbed on DF from konatsu and mandarin orange at pH 8 was 45mg and 16mg, respectively, and no dissociation occurred after dilution of the suspensions. The acceptability of konatsu was high, not only for natives of Kochi Prefecture but also for non-natives.View full abstractDownload PDF (1377K) -
Kiyoshi EBIHARA1992 Volume 45 Issue 6 Pages 551-553
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSSeven kinds of gelatinized modified starch were compared for their effects on postprandial plasma glucose response in rats and their α-amylase hydrolysis in Vitro. The modified starches used in this study were oxidized starch (PO) and hydroxypropyl distarch phosphate (PHP-I and -II) prepared from potato starch, and roast dextrin (CD), acetylated distarch phosphate (CA) and hydroxypropyl distarch phosphate (CHP-I and -II) prepared from corn starch. Using a stomach tube, rats were given 100mg of modified starch per 100g body weight as a 10% (w/v) solution. CD elicited a greater plasma glucose response than PO, CA, PHF-I, II and CHP-I, II. The digestibility by α-amylase in the first stage for 30min was as follows: CD>PO>CA>CHP I and PHP I, II>CHP II. The viscosities of CD and PO were markedly lower than those of CA, PHP-I, II and CHP-I, II. Therefore, digestibility and viscosity seem to be factors determining the difference in postprandial plasma glucose response between these modified starches.View full abstractDownload PDF (489K) -
Kiyoshi EBIHARA1992 Volume 45 Issue 6 Pages 554-559
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSThe utilization of pancreatin-indigestible parts of several kinds of modified starch by various intestinal bacteria in vitro was investigated. Four kinds of hydroxypropyl distarch phosphate (HP) and two kinds of oxidized starch (PO) with different degrees of substitution prepared from potato or corn starch were used as the modified starch. HP and PO were slightly utilized by Bifidobacterium spp., except for B. bifidium, B. infantis and B. longum. PO was utilized more readily than HP. In general, the modified starches used in this study were difficult for intestinal bacteria to utilized.View full abstractDownload PDF (676K) -
Taishi ODA, Seiichiro AOE, Hiroo SANADA, Yuko Ayano1992 Volume 45 Issue 6 Pages 560-563
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSThe effects of oat, barley and wheat on liver and plasma cholesterol concentrations were examined in cholesterol-fed rats. Male Sprague-Dawley rats, aged 5 weeks, were fed a control diet containing 5% cellulose or diets containing defatted cereal flours corresponding to 5% total dietary fiber for 9 days. Oat, barley and wheat suppressed liver cholesterol accumulation. Liver cholesterol concentrations for the oat and barley groups were significantly lower than those for the wheat group. The quantities of soluble dietary fiber intake, in increasing order, were those for the wheat, oat and barley groups. A significant inverse relationship between the quantity of soluble dietary fiber intake and liver cholesterol accumulation was observed; n=32, r=-0.79, p<0.0001. Plasma cholesterol concentrations were similar in all four groups.View full abstractDownload PDF (708K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...1992 Volume 45 Issue 6 Pages 564-567
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
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1992 Volume 45 Issue 6 Pages 568-569
Published: December 10, 1992
Released on J-STAGE: February 22, 2010
JOURNAL FREE ACCESSDownload PDF (488K)
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