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Iwaya, Masako; Kobatake, Yoshiki; Tamura, Einosuke

doi:10.5264/eiyogakuzashi.35.101

Cited by 6 publications

(3 citation statements)

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“…Our results indicated that all the groups had a positive nitrogen balance, and the KPC group exhibited the highest nitrogen retention, BV, and NPU. The study conducted by Iwantani et al (1977) showed that the protein of precooked (freeze-dried and defatted) krill results in almost equal weight gain, PER, and net protein ratio (NPR) values as that of casein, although the values of these measurements were obviously lower than those obtained with whole egg protein. Kobatake, Ishiguro, Hirahara, Innami, and Nishide (1980) determined the nutritive value of protein in krill meat after removal of the exoskeleton and found that it remained inferior to that of egg protein.…”

Section: Nitrogen Balance Assessmentmentioning

confidence: 98%

“…The effectiveness with which a nitrogen balance can be achieved with a given amount of absorbed dietary nitrogen is defined in terms of BV. The NPU, which is the product of BV and NPU, is the amount of protein in food that is actually utilized by the body (Iwantani et al, 1977). Therefore, the higher BV (p = .009) and NPU (p = .032) values obtained for the KPC-fed group compared with the defatted krill powder-fed group indicate that the defatted krill powder-fed rats showed less nitrogen retention and poorer bioavailability than the KPC-fed rats.…”

Section: Nitrogen Balance Assessmentmentioning

confidence: 99%

“…Several studies have focused on the quality of krill proteins. Iwantani, Obtake, and Tamura (1977) and Gigliotti, Jaczynski, and Tou (2008) assessed the nutritional value of krill proteins through animal experiments, and based on their studies, krill appears to be a promising protein source for human consumption. Due to the limited number of studies on the role of different krill products on the nitrogen balance and oxidative status of the body, our study aimed to evaluate the effects of three types of krill products, namely krill protein complex (KPC), krill powder, and defatted krill powder, on the nitrogen balance.…”

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confidence: 99%

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Effects of three products from Antarctic krill on the nitrogen balance, growth, and antioxidation status of rats

Liu

Wang

et al. 2019

Food Science & Nutrition

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A few studies conducted over the past few decades have demonstrated the health benefits of a diet rich in marine products, but limited studies have investigated the effects of different krill products on the nitrogen balance and their potential health benefits. In our study, after a 14‐day acclimation period, 50 female Sprague–Dawley rats were randomly assigned to five groups, each of which was fed a different diet, for 28 days. We then evaluated the effect of krill protein complex (KPC), krill powder, and defatted krill powder on the nitrogen balance, growth, and antioxidant activity through analyses of MDA, CAT, GSH‐Px, and T‐SOD. An in vivo analysis suggested that the nitrogen retention rate, protein digestibility, and bioutilization of krill products were equal to those of casein. Moreover, the KPC diet resulted in the highest nitrogen intake and retention among the groups, and the biological value and net protein utilization obtained with KPC were higher than those obtained with defatted krill powder, which was consistent with the weight gains observed for these two groups. The hematological test also showed that KPC contributed to the production of functional proteins in the body. The antioxidant activity analysis indicated that higher GSH‐Px and T‐SOD activities were obtained with krill products and KPC, respectively, compared with casein. The results from this study suggested that krill proteins could promote growth and improve the antioxidant status of an organism. Although further studies on the safety of krill products for human consumption are needed, this work provides insights into the use of krill proteins as a potential substitute for other proteins and restructured foods.

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Section: Nitrogen Balance Assessmentmentioning

confidence: 98%

Section: Nitrogen Balance Assessmentmentioning

confidence: 99%

mentioning

confidence: 99%

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