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    Wyświetlanie 1-4 z 4
    Tytuł:
    Neem (Azadirachta indica A. Juss.) oil: A source of alternative fuel through enzyme technology
    Autorzy:
    Nandi, Sumit
    Bhattacharyya, Rupa
    Mitra, Swarnendu
    Powiązania:
    https://bibliotekanauki.pl/articles/1193346.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Azadirachta indica
    Candida antarctica
    Crude Neem oil
    diacylglycerol
    monoacylglycerol
    triacylglycerol
    Opis:
    Production of alternative energy sources from eco-friendly raw materials is supposed to be the most challenging job among researchers and academicians in the present world. Biodiesel has been considered as most useful green energy sources which is produced from Crude Neem (Azadirachta indica) oil (CNO) in the present study. The main advantages of CNO is that it is non-edible and is obtained abundantly in nature from neem seed. Initially, after bleaching of CNO, it is transesterified with methanol in the presence of non-specific enzyme catalyst Novozyme 40013 (Candida antarctica) maintaining certain reaction conditions. The parameters of the transesterification reaction have been identified as 8:1 molar ratio of methanol to CNO, 60 °C temperature in the presence of 6% enzyme Novozyme 40013 and 600 rpm of mixing intensity for 9 hrs of reaction duration. The product obtained, after completion of reaction, has been estimated of 91.24% biodiesel along with minor amounts of triacylglycerol (TAG), diacylglycerol (DAG) and monoacylglycerol (MAG). Finally, the physico-chemical properties of CNO biodiesel have been analysed and it showed good conformity with diesel fuel and biodiesel standard.
    Źródło:
    World Scientific News; 2021, 154; 76-88
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of neem leaf (Azadirachta indica) meal on growth performance and haematology of rabbits
    Autorzy:
    Unigwe, C. R.
    Balogun, F. A.
    Okorafor, U. P.
    Odah, I. S.
    Abonyi, F. O.
    Olona, J. F.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192593.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Rabbits
    Neem leaf meal
    growth performance
    haematology
    feed conversion ratio
    Opis:
    A ten-week experiment using twenty four (24) weaner rabbits (Chinchila x New Zealand White) aged 8 to 9 weeks with an average initial body weight of 431.20+0.74g were randomly allocated to four treatment diets of T1(control), T2(5% NLM), T3(10% NLM) and T4(15% NLM) in a completely randomized design. They were fed for 10 weeks during which data on growth and haematology were collected and analysed using analysis of variance (ANOVA) and means separated using Duncan Multiple Range Test. The results showed that the average total body weight gains were 739.60g (T1), 717.85g (T2), 740.18g (T3) and 729.45g (T4).There was no significant difference (p>0.05) when T1 and T3 as well as T2 and T4 were compared but significant (p<0.05) when T1 and T2 as well as T3 and T4 were compared. Also the average weekly feed intake showed that T1, T2, T3 and T4 consumed 313.91g, 313.24g, 312.48g and 314.69g respectively. However, there was significant difference (p<0.05) when all the treatments were compared in this respect. The feed conversion ratio (FCR) showed that T3 (4.22) was the best followed by T1 (4.24), T4 (4.31) and T2(4.36) with significant differences (p<0.05) among them except (p>0.05) between T1 and T3. The haematological indices showed that though all the parameters fell within the normal physiologic ranges, the PCV was 37.62% (T1), 38.42% (T2), 39.60% (T3) and 39.03% (T4) and when compared, were all significantly different (p<0.05) except (P>0.05) for T3 and T4 while the haemoglobin concentration showed that T1(13.47g/dl) was significantly different (p<0.05) from T2(14.18g/dl), T3(14.34g/dl), and T4(13.97g/dl). The white blood cell count showed that T3 (10.62 x109/L) had the highest value followed by T1 (10.12 x109/L), T4 (9.34 x109/L) and T2 (9.18 x109/L) with a significant difference (p<0.05) occurring when T1 and T3 were compared to T2 and T4 while the red blood cell counts indicated that T1 had the highest value of 4.92 x106/L followed by T3(4.89 x106/L), T2(4.73 x106/L) and T4(4.65 x106/L) without any significant difference among the treatments. All the values fell within the normal range. It is therefore recommended that inclusion of neem leaf meal in the diets of rabbits up to 10% is not detrimental since it improved feed conversion ratio (FCR), growth performance and had no negative effect on haematological values.
    Źródło:
    World Scientific News; 2016, 55; 51-62
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Rates of NPK, Neem-Based Organic Fertilizer and their Combinations on Okra (Abelmoschus esculentus L. Moench) Yield and Leaf Nutrient Content in South-eastern Nigeria
    Autorzy:
    Ayito, Esther Okon
    Iren, Otobong Benjamin
    Powiązania:
    https://bibliotekanauki.pl/articles/1109630.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Fertilizer rates
    NPK
    leaf nutrient content
    neem-based organic fertilizer
    okra
    Opis:
    Herein, the effect of applying different rates of inorganic fertilizer (NPK 20:10:10) and organic fertilizer (neem seed) and their combinations on plant nutrient concentration and yield of okra was studied under field conditions at two locations within the University of Calabar Teaching and Research Farm. The experiment was laid out in a randomized complete block design with three replications. Eleven treatments were applied. These were comprised of a control (no amendment), sole NPK 20:10:10 fertilizer and neem–based organic fertilizer applied at two rates (100 and 120 kg N/ha), combinations of 60 kg N/ha NPK+ 60 kg N/ha Neem, 50 kg N/ha NPK+ 50 kg N/ha Neem, 90 kg N/ha NPK + 30 kg N/ha Neem,25 kg N/ha NPK+ 75 kg N/ha Neem, 30 kg N/ha NPK + 90 kg N/ha Neem and 25 kg N/ha NPK+ 75 kg N/ha Neem. Amongst the two rates (100 and 120 kg N/ha) of sole application of either NPK or Neem-based organic fertilizer, the 120 kg N/ha recorded the highest number of fruits set and okra fresh fruit yield. The combination of 60 NPK + 60 Neem kg N/ha increased the yield (8.43 t/ha) and yield components of okra, while the 90 NPK + 30 Neem kg N/ha and 30 NPK + 90 Neem kg N/ha increased nutrient concentration in the okra plant. Thus, for sole application, the 120 kg N/ha application of either nutrient source is appropriate, but for optimum yield of okra in the tropical rainforest zone of Nigeria, the combination of both organic and inorganic fertilizer especially at 60 kg N/ha of each nutrient source, is recommended.
    Źródło:
    World News of Natural Sciences; 2018, 20; 196-207
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Functional properties of neem oil as potential feedstock for biodiesel production
    Autorzy:
    Bhandare, P.
    Naik, G.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/11717.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    functional property
    neem
    seed oil
    Azadirachta indica
    feedstock
    biodiesel production
    physicochemical parameter
    Opis:
    Fossil fuel resources are decreasing daily while biodiesel fuels are attracting increasing attention worldwide as blending components or direct replacements for diesel fuel in vehicle engines. In this experiment the seed oils of 30 Neem (Azadirachta indica. A. juss) biotypes were screened and evaluated for their physio-chemical parameters for oil content, biodiesel yield, density, viscosity, iodine value , free fatty acid and saponification value. Hence the neem seed oil tested in this current study could be the potential sources of raw material for biodiesel production.
    Źródło:
    International Letters of Natural Sciences; 2015, 07
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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