Effect of Chicken Manure on the Growth and Yield
of Mulberry Plant in Caoayan, Sual, Pangasinan
Paul M. Bacuso,
Arnold M. Inumpa, Pepito M. Toring and Zoraida R.
Espiritu
ABSTRACT
A study
to determine the effect of chicken manure on the growth
and productivity of mulberry plants in a newly
established plantation in Caoayan, Sual, Pangasinan was
conducted. The study utilized the one year old plants in
a 500 square meters within one hectare newly established
plantation. The four parameters namely; plant height,
weight of whole shoot, weight of pure leaves per tree
and number of leaves per plant were used to evaluate the
effect of chicken manure. The results on all the four
parameters indicated that chicken manure is an effective
side dressing for better growth and development of
mulberry plants, thus resulting to higher leaf yield.
Microbial Degumming of Pineapple (Ananas comosus var.
Formosa) and Banana (Musa sapientum var. Cavendish)
Fibers
Maria Trisette E. Caliwara
and Zenaida I. de Guzman
ABSTRACT
Geotrichum sp. and Bacillus sp. were isolated from
pineapple (Ananas comosus var. Formosa) and banana
(Musa sapientum var. Cavendish) fibers. Pure cultures
of the isolates were used to degum said fibers at
various conditions of material-liquor ratio (LR) and
nutrient additive. The efficacy of the microorganisms
as retting agents was evaluated based on their
degumming capability towards the fiber as indicated by
the treated fiber's residual gum content and tensile
strength. Lab-scale degumming of the microorganisms
for pineapple fiber with variations in LR, showed that
at 1:10, the fungal isolate of pineapple fiber was
effective in reducing the gum content of the fiber by
6.73% with a 9.77% increase in tensile strength.
Addition of urea as nutrient additive increased the
efficiency of the fungal isolate in degumming the said
fibers for it further reduced the gum content by
7.14%. For banana fiber, using urea and LR of 1:20,
its bacterial isolate effected a 9.16% gum reduction
with an 18.9% increase in the fiber's tensile
strength.
The obtained gum reductions of the established
microbial degumming for pineapple and banana fibers
were still insufficient to meet the spinning
requirements. Hence, a combined microbial-alkali
degumming trial was conducted.
Test Conditions for Moisture Regain of Cotton Woven
Fabric
Using the Moisture Balance (Infra Red Drying)
Marilou C. Forcadela and Virmila B.
Alvarez
ABSTRACT
A
series of laboratory tests was conducted to determine
the appropriate test conditions for moisture regain of
cotton woven fabric using the moisture balance (MB)
method. Parallel run with the oven-desiccator balance
(OBD) method based on the American Society of Testing
Materials (ASTM) was conducted. The established
conditions for MB method were set at Interval 1, and
Heat Level 1 and temperature of 105°C.
The results were compared and validated with the
results of ODB method. Using the t-test on paired
data, results showed that there is no significant
difference between the values obtained from the two
methods at 0.05 level or 95% confidence level. Thus
the established test conditions for moisture regain of
cotton woven fabric using MB method gave the same
values with that of the ODB method.
Findings revealed that the established test conditions
are the most appropriate for standard cotton woven
fabric, as statistically validated; and that the MB
method could be used for moisture regain determination
instead of the traditional ODB method to shorten the
testing time from 5 hours to approximately 30 minutes.
The above findings were confirmed only for the test
fabric used. Further studies should be done using
cotton fabrics of different construction and
eventually fibers, yarns, & other blended fabrics.
Natural Dyeing Technology Transfer in Banaue, Ifugao Julius L. Leaño, Jr.
ABSTRACT
Cognizant of its mandate,
the Philippine Textile Research Institute (PTRI)
undertakes the transfer of its developed natural
dyeing technology to interested adopters and intended
beneficiaries. A technology transfer seminar was
conducted in Banaue, Ifugao on October 7-9, 2003 for
the members of the Federation of Banaue Women's
Organization. The seminar included lectures, hands-on
training, field assessments and discussions. Amidst
the innate skills in natural dyeing of the dyers, they
were open to the infusion of the technology to their
age-old dyeing practices. The conduct of the training
on natural dyes was successful in the enhancement of
the innate skills of the dyers, created awareness of
the benefits derived from the use of natural dyes and
diversified the product line of the weavers.
Silkworm Egg Quality as Affected by
Coupling Duration and Rearing Season Serenita S.
Ompoy, Ronnie M. Liguan, Hernando P. Bacosa and Zita
L. Sanchez
ABSTRACT
MO202 female moths were
mated with K203 male parent breeds to determine the
influence of coupling duration and rearing season in
the production of F1 silkworm eggs. The study tested
five coupling durations from 1 hour to 5hours. Two
trials each were carried out during the dry season and
wet season. Results revealed that coupling duration
does not influence the quality of laid silkworm eggs.
Allowing the moths to mate once in 1 hour to 5hours
produced the same number of eggs per laying and
fertilized eggs. Fecundity percentage does not vary
among the five mating durations. On the other hand,
dry season produced more fertilized eggs and total
eggs per laying with lower fecundity, while wet season
produced less fertilized and total number of eggs per
laying with higher fecundity percentage..
Quick Screening for Carcinogenic Amines by
High Pressure Liquid Chromatography Marina V.
Reconose and Daisy C. Lopez
ABSTRACT
Azo dyes may form amines
upon cleavage of their azo groups. The banned azo dyes
may therefore be detected via the carcinogenic amines
that they produce. However, the published High
Pressure Liquid Chromatography programs are
time-consuming and/or use toxic eluants. A study to
establish elution programs that can be finished at
shorter time and with less health hazard was therefore
started. Initial results showed that isocratic elution
with neat methanol (MeOH) and MeOH:water (7:3) elute
the 8 standard amines in less than 7 minutes, and
indicated that these eluants are suitable for quick
screening for those amines, with the latter as the
better eluant.
