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    Wyświetlanie 1-3 z 3
    Tytuł:
    Determination of some metal contents in ashed and unashed snail shell powders
    Autorzy:
    Sunday, E. A.
    Magu, T. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/1119064.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Achatina fulica
    Ashing
    Metal contents
    Snail shell powder
    Opis:
    This work was aimed at investigating the metal contents of ashed and unashed shell powders of snail (Achatina fulica). The snails were collected and treated according to the American Society for Testing and Material (ASTM D482-91). Potassium (K), Sodium (Na), Calcium (Ca), Magnesium (Mg), Zinc (Zn) and Iron (Fe) in the ashed and unashed snail shell powder was determined. The result showed that the concentration of the metals in the unashed snail shell powder was higher than that of the ashed powder. The differences in the concentration of the metals was linked to the effect of ashing on the formation of silicates of the metals at high temperature (800 °C). At very high temperature, Ca (in the form of calcium carbonate) had very high concentration in both the ashed and unashed snail shell powder. This indicates that snail shell powder can be used as filler in paper industry to improve the paper opacity, or in the cosmetic industry as face powder.
    Źródło:
    World News of Natural Sciences; 2017, 7; 37-41
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physico-chemical properties and fatty acid composition of Lagneraria siceraria seed oil
    Autorzy:
    Magu, T. O.
    Sunday, E. A.
    Louis, H.
    Upla, P. U.
    Ukpanah, M. A.
    Nyong, B. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1118076.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Cucurbitaceae
    Lagenaria siceraria
    Linoleic acid
    fatty acid
    seed oil
    Opis:
    Oil was extracted from the dehulled seeds of Lagneraria siceraria (bottle gourd) and analysed for physico-chemical properties, as well a fatty acid composition. Standard procedures were employed in all analysis. The seed oil was liquid at room temperature with percentage yield (23.65%). The oil was characterized in terms of specific gravity (0.918 g/cm3), refractive index (1.34), viscosity (26.46 X 103 poise), melting point (11-14.5 °C), moisture content (0.18%), saponification value (203.36 mg KOH/g), unsaponifiable matter (7.13%), iodine value (46.1 g/100g), peroxide value (7.5 meq/kg), free fatty acid value (18.42%), acid value (60.02 mg KOH/g) and ester value (143.34 mg KOH/g). It was also classified as non- drying (iodine value ˂115 g/100 g). The peroxide value indicates that the oil is less prone to rancidity with iodine value less than 30meq/kg. The high saponification value qualifies it for use in the manufacture of soaps and shampoos. Four classes of fatty acid were identified in the oil: palmitic acid (C16:1) (13.5 ± 0.21), stearic acid (C18:1) (6.5 ± 0.96), oleic acid (C18:1) (11.6 ± 0.62) and linoleic acid (C18:2) (68.4 ± 0.13). Linoleic acid was the most abundant fatty acid in the oil. The fatty acid content of the oil reveals that L. Siceraria seed oil could be a rich source of oil for domestic and industrial purposes if exploited.
    Źródło:
    World News of Natural Sciences; 2017, 10; 70-79
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Food safety and public health: the paradox of bisphenol A
    Autorzy:
    Omoyajowo, Koleayo O.
    Aderemi, Stephen S.
    Adenekan, Olapeju A.
    Bello, Adebayo J.
    Shodunmola, Gbemi E.
    Amiolemen, Sunday O.
    Babalola, Olutunde O.
    Powiązania:
    https://bibliotekanauki.pl/articles/1178556.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    BPA
    ecology
    food safety
    human health
    Opis:
    The overwhelming burden that bisphenol A (BPA) has caused humanity demands clarity as the global society agitates for a safer food packaging component. BPA is a structural component used in hardening of plastics and lining of various food and beverage containers to protect food from contamination and extend shelf life. The study review several literatures on BPA exposures, BPA toxicokinetics, BPA pharmacokinetics, epidemiology and ecological impacts of BPA. Our findings posits that even though BPA does not have a long span per se, its influence and accumulation in human body has a negative long term effect which could lead to several dangerous health implications such as cancer, obesity and fertility problems. These findings challenge the long-standing scientific and legal presumption of BPA's safety and recommends possible safety measures that can be taken in order to reduce exposure to BPA and few of such actions includes; public awareness about BPA and its presence in our daily consumption, negative effects of BPA to the environment and to the human body and finally, thorough investigation of the presence and threshold limit of BPA in plastics and canned foods.
    Źródło:
    World Scientific News; 2017, 70, 2; 265-284
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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