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 | Effect of Short Term Energy and Protein Restriction on Tissue and Body Composition of Rats
Author : Siddalingaswamy, M. ;Prasad, N. Narayan;Viswanathan, K.R.
Source : Defence Science Journal ; Vol:47(2) ; 1997 ; pp 159-166
Subject : 61 Medical Sciences;612 Physiology;577 Biochemistry
Keywords : Nutrition ;Biochemistry;Physiology
Abstract : The effect of 50 per cent restriction in energy and protein intake in young adult rats has been studied. Two groups of rats were fed for 10 days (Stabilisation, Phase I) an isocaloric diet with two levels of protein: 20 per cent (20 P) or 10 per cent (10 P). At the end of Phase I, each protein group was sub-divided into two groups-a control group and an experimental (Restricted) group -and fed ad libitum or at 50 per cent level of the respective diet for a further period of 10 days (Phase II). The animals were then sacrificed and organs and carcasses preserved for analysis. The results showed highter food consumption and lower weight gain in the ad libitum fed 10 P group compared to 20 P group during Phase II. Fifty per cent diet restriction resulted in nearly identical reduction in weight gain in both the groups. Though nitrogen (N) balance was reduced drastically during diet restriction, it remained clearly positive in the 20 P restricted group, while it was just maintained in the 10 P restricted group. The carcass and tissue composition data showed that the loss in weight was due to extensive depletion of lipids in both the food restricted groups without degradation of the protein component. The study thus demonstrates that short- term 50 per cent diet restriction did not result in protein degradation when maintenance need of protein is met. |
| | Attributes of Seabuckthorn (Hippophae rhamnoides L.) to Meet Nutritional Requirements in High Altitude
Author : Stobdan, Tsering;Chaurasia, O.P.;Korekar, Girish;Mundra, Sunil;Ali, Zulfikar;Yadav, Ashish;Singh, Shashi Bala
Source : Defence Science Journal ; Vol:60(2) ; 2010 ; pp 226-230
Subject : 631 Agriculture;Defence Science Journal
Keywords : Hippophae rhamnoides L.;high altitude;nutrition;Seabuckthorn
Abstract : The diet of humans living in different geographical and climatic regions of the earth varies greatly in both quantity and composition of foods. Evidence is accumulating that indicates that there is a high risk of malnutrition at high altitude because of the usual lack of fresh food and environmental factors. Lack of nutritious diet in the difficult terrain is a potential stressor that elicits oxidative stress. The excretion of minerals from the body is higher in high altitude condition. The altered nutritional requirement can be met to a large extend by regular consumption of locally grown fruits and vegetables. Results of analysis of Seabuckthorn growing in Leh valley of Trans-Himalaya showed the presence of high content of multivitamins including vitamin C (275 mg/100g), vitamin A (432.4 IU/100g), vitamin E (3.54 mg/100g), Riboflavin (1.45 mg/100g), Niacin (68.4 mg/100g), Pantothenic acid (0.85 mcg/100g), vitamin B-6 (1.12 mg/100g), and vitamin B-2 (5.4 mcg/100g). Similarly, mineral elements composition revealed high amount of minerals including potassium (647.2 mg/l), calcium (176.6 mg/l), iron (30.9 mg/l), magnesium (22.5 mg/l), phosphorous (84.2 mg/l), sodium (414.2 mg/l), zinc (1.4 mg/l), copper (0.7 mg/l), manganese (1.06 mg/l) and selenium (0.53 mg/l). |
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