full2012.pdf - page 177

Considering all the phytochemical study, aloin also known as Barbaloin is a bitter, yellow-brown colored
compound noted in the exudate of at least 68
Aloe
species. Aloin from aloe is a traditional medicinal plant used to
alleviate pain from ulcers and burns. In particular, aloe-gel has been used as an ingredient in commercial wound care
products, and it reportedly accelerates wound closure in chronic wounds and ulcers (Okamura
et al
., 1996). In this study,
we examined that the detected standard, Anthraquinon, showed R
f
= 0.43-0.45, 0.63- 0.90. The maximal detected
extracted was found in leave crudes with dichloromethane solvent (R
f
= 0.87, orange color) and in shoot crudes with
methanol (R
f
= 0.43, 0.87, 0.90, yellow color). Likewise, cumarin derivatives are widely distributed in the plant kingdom,
some of them are physiologically active and many of them are of great practical interest. They are widely used as laser
dyes and, optical brighteners and and fluorescent markers. On the other hand, some of the cumarin derivatives possess
antimicrobial properties and also employed in fluorometric assay of proteolytic enzymes in biological fluids, in
fluorescent immunoassays, in brainintracellular pH measurements and as a powerful drug in skin diseases (Finar, 1973).
The present study also showed that cumarin was found in leave crudes of dichloromethane maximizely (R
f
= 0.81, 0.87,
purple color) as well as methanolic shoot extracts (R
f
= 0.87, purple color). Tannins (polyphenols) are produced via
condensation of simple phenolics that are secondary metabolites and are widespread in the plant kingdom. Tannins are
biologically active compounds and may have beneficial or adverse nutritional effects. Endogenous tannins protect
unharvested seeds from attack by insects, birds and herbivores, as well as certain diseases and untimely germination.
Possible harmful effects of certain biological compounds, such as phenolics, trypsin inhibitors and phytates, have
received considerable attention (Torssell, 1983). These compounds occur naturally in the seeds of legumes and cereals
and, if present in sufficient quantities, may lower nutritional value and biological availability of dietary proteins and
minerals (Schofield
et al
., 2001). In part of tannin, we found this substance in every extracted leave solvents (R
f
= 0.87
and 0.93, dark green color) and in ethanolic shoot crudes maximizely (R
f
= 0.87, dark green color). However, the study
must be extend to the whole southern to lead to innovative strategies in traditional medicine from bamboos that have not
yet screened for any pharmacological property. With development of technology and further research, a new
understanding and approach can be taken so that new uses of bamboos may be discovered to serve modern needs.
Particularly, there is the great challenge of minimizing pollution in the environment and conservation of natural resources.
Bamboo timber is particularly valuable nowadays it is a renewable resource that is faster to replace than hard- and
softwood timber from angiosperms or gymnosperms. Bamboo material is biodegradable unlike many man-made plastics
or polymers.
177
การประชุ
มวิ
ชาการระดั
บชาติ
มหาวิ
ทยาลั
ยทั
กษิ
ณ ครั้
งที่
22 ประจำปี
2555
1...,167,168,169,170,171,172,173,174,175,176 178,179,180,181,182,183,184,185,186,187,...1917
Powered by FlippingBook