Pusat Pengajian Sains Kajihayat - Tesis

Browse

Now showing 1 - 5 of 968

Immunological Reactivity Of Jird (Meriones Unguiculatus) To Infection
(1993-12)
Panasoponkul, Chotechuang
Filariasis is a chronic parasitic infection which is considerable public health and socioeconomic importance in many tropical and subtropical countries and remains a major health problem in many areas of the world. The present study was undertaken to elucidate the various immunoregulatory mechanisms elicited by different doses of subcutaneous infection with B. pahangi in jirds (Meriones unguiculatus)
Nilai Nutrisi Kek Isirong Kelapa Sawit (PKC) Dalam Makanan Pelet Untuk Ikan Tilapla
(2002-06)
Lim, Hong Aik
Tiga eksperimen berasingan telah dijalankan untuk mengkaji beberapa aspek nilai nutrisi kek isirong kelapa sawit (PKC) dalam makanan pelet untuk ikan tilapia. Dalam Eksperimen I, keterhadaman nutrien dan ketersediaan asid amino PKC kepada ikan tilapia telah ditentukan berbanding dengan beberapa jenis bahan mentah. Diet ruj ukan dengan 40% protein kasar dan lima diet ujian yang mengandungi diet rujukan dan bahan mentah ujian dalam nisbah 70:30 telah dirumuskan. PKC telah menunjukkan keterhadaman protein ketara yang lebih tinggi berbanding dengan serbuk kacang kelisa (WBM), dan keterhadaman jirim kering, protein dan tenaga yang lebih rendah berbanding dengan bahan-bahan mentah lain.
Perkembangan Kaedah Kromatografi Bagi Penentuan Klorproguanil Dan Klorsikloguanil Di Dalam Plasma
(1990-12)
Mahmud, Latifah
Kaedah-kaedah kromatografi cecair dan gas yang baru telah dimajukan bagi penentuan klorproguanil dan metabolitnya, klorsikloguanil dalam plasma. Drug-drug berkenaan berserta proguanil sebagai piawai dalaman telah diekstrak daripada plasma melalui kaedah pengekstrakan fasa pepejal pada penjerap ODS (CIS) dengan dielusikan oleh metanol yang mengandungi 0.01 % dietilamina-asid asetik. Purata peratus pengembali bagi klorproguanil melalui pengekstrakan ini adalah (85 + 3.6) % dengan pekali ubahan 4.2 % manakala bagi klorsikloguanil pula adalah (60.2 ± 3.9) % dengan pekali ubahan 6.6%.
Relationship Of Oil Palm Inflorescence And Evaluation Of Several Insecticides On Tirathaba Mundella Walker Lepidoptera Pyralidae And Elaeidobius Kamerunicus Faust Coleoptera Curculionidae
(2017-07)
Shukor, Muhammad Idrus
Oil palm plant, (Elaies guineensis Jacq.) from family Palmae was originated from the West Africa and was brought into Malaysia by British Colony. It is now known as the “golden crop” and have become one of the most important oil producing plants in the world. Oil palm inflorescences and bunches are important diet for two insects, the fruit bunch moth, Tirathaba mundella and the pollinating weevil, Elaeidobius kamerunicus. T. mundella cause 50 % loses of fresh fruit bunch (FFB) while E. kamerunicus is an important pollinator. The objectives of this study are: (1) to find the relationship between the oil palm inflorescences and bunches stage with T. mundella and E. kamerunicus, (2) to find the efficacy and residual effect of several insecticides towards the T. mundella population and (3) to determine the effect of several insecticides towards the E. kamerunicus population. By using Biologische Bundesantalt, Bundessortenamt und Chemische Industrie or BBCH scale, the oil palm inflorescences and bunches stage were described and used for further study on both insects. The results show that the young bunch (E) with new frass (N) and high infestation (H) have the highest count of larvae. Location with high rotten bunches are having high T. mundella infestation and larvae count. Besides, location with high rotten bunches also had low male inflorescence. Both results show that lower pollination which caused T. mundella infestation to increase thus increasing the rotten bunches count. The time taken for male inflorescence to complete their development was approximately 9 days. The study found that pollinating weevil populations were most abundant during peak anthesis time.
Preparation And Characterization Of Poly(3-Hydroxybutyrate-Co-3- Hydroxyhexanoate) Reinforced Kenaf Fibre
(2017-08)
Lee, Joyyi
Polyhydroxyalkanoate (PHA) is an advantageous polymeric material due to environmental friendliness but its mechanical properties limits its potential in material selection. Green composites, produced from renewable polymers such as thermoplastic PHA and natural fibres, are possible ways to solve this shortcoming. It can potentially substitute non-renewable synthetic materials in composite manufacturing sector. The polymer component of the composite, poly(3- hydroxybutyrate-co-3-hydroxyhexanoate) [P(3HB-co-3HHx)] with 3HHx monomer fraction of approximately 20 mol%, was biosynthesized by fermentation using used cooking oil as the sole carbon source. Subsequently, bulk quantity ofP(3HB-co-3HHx) was recovered using solvent-free novel biological recovery method with yellow mealworms (Tenebrio molitor) and followed by further purification with water containing strong anionic detergent. P(3HB-co-3HHx) showed slightly better thermal stability than its solvent extracted derivative with the removal of inorganic compounds during the purification process.

Browse

Recent Submissions