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Pamela M. Po-Abit and Norma O. Aguilar ABSTRACT The attitudinal distribution of monocotyledonous species in Mt. Pangasugan, Leyte, Philippines was described. Quantitative vegetation analysis to evaluate attitudinal effect was also done from the four sites established in the western side of the mountain. Hierarchical cluster analysis showed that the families Araceae, Gramineae, Orchidaceae, Palmae, and …

Altitudinal distribution and quantitative vegetation analysis of the monocotyledonous flora in Mt. Pangasugan, Leyte, Philippines Read More »

Erlinda A. Vasquez and MeIecio A. Buyser ABSTRACT The mealybug, Planococcus pacificus Cox, is one of the most important insect pests attacking stored yam in the Philippines. This paper reports the results of our study on the life history of the insect on greater yam (Dioscorea alata var Kinampay). The insect underwent four development stages …

Biology of yam mealybug, Planococcus pacificus Cox (Hemiptera: Pseudococcidae) Read More »

Sunanda Chanda, Kakali Ghosh, Priyanka Majumbar and Swapan K. Bhaduri1 ABSTRACT Leaf fiber residue generated as a by-product during the bulk production of leaf protein from forest tree leaves poses disposal problems in the absence of any proper utilisation. The fiber residue can be returned to the forest floor for mineralization as a soil amendment. …

Effect of some edaphic factors on microbial decomposition of leaf fibre biomass of Toona ciliata Roxb. and Trema orientalis Bl. Read More »

R.C. Ray and Swayam Prava Pati ABSTRACT Java black rot and soft rot are two important postharvest diseases of sweetpotato caused by Botryodiplodia theobromae Pat. and Rhizopus oryzae Went & Prins. Geerl., respectively. There was a gradual decline in starch and ascorbic acid contents in sweetpotato roots following harvest and this decline was further aggravated …

Biochemistry of postharvest spoilage of sweetpotato (Ipomoea batatas L.)1. Changes in starch, total sugar, praline and ascorbic acid content Read More »

Edgardo E. Tulin, Anabella B. Tulin and Shin-ichiro Ejiri ABSTRACT Tachyplesin is an antimicrobial peptide isolated from the he es of horseshoe crab (Tachypleus tridentatus). Due to the importance of producing highly active peptides that have great commercial application, we attempted to produce this protein using a continuously coupled transcription-translation in a wheat germ extract …

Cell-free synthesis of tachyplesin, an antimicrobial peptide from tachypleus tridentatus Read More »

Edgardo E. Tulin ABSTRACT An automated two-component substrate (polypepton plus glucose) feeding strategy with a pH-stat modal fed-batch culture using a high pH limit was developed to effectively produce esterase from a protein-hyperproducing Bacillus brevis HPD31 harboring the plasmid pHSC131 which carries the Bacillus stearothermophilus esterase gene. Highest activity of the secreted esterase (34 U/ml) …

Effective production of recombinant esterase in Bacillus brevis using a pH-controlled fed-batch culture Read More »

Bianca Therese P. Ymas and Santiago T. Peña Jr. ABSTRACT Investigations on the presence of antibiotic residues in livestock manure are becoming an integral part on the quest against antimicrobial resistance (AMR). Moreover, as a potential hazard to human health and the environment, the threat of antibiotic residues cannot be taken lightly. As one of …

Detection of veterinary antibiotic residues in fresh fecal samples collected from selected pig farms in the City of Baybay, Leyte, Philippines Read More »