Thesis
Investigating The Effect Of Compost Supplementation On Abrus Precatorius To Produce High-Value Triterpenoid Saponin
Abrus precatorius, known as Saga, is a legume plant belonging to the tropical Asia region that
is known for its toxicity. Precedent research has shown that Abrus precatorius leaves and roots
have a potential effect on treating various diseases such as cough, bronchitis, hepatitis, and
cancer. However, Saga plants are being undervalued in Indonesia due to the lack of knowledge on
the benefits and advantages of the Saga plants. In fact, Saga produces plant secondary
metabolites for a variety of biological purposes, most prominently for adapting to environmental
stress. Terpenoids, are one of plant secondary metabolites produced or induced by plants when
they undergo stress. In Saga plants, triterpenoid saponins are accumulate inside the roots and
leaves of the plants, and reportedly possess several advantages of health benefits. Nevertheless,
the production of triterpenoid saponins in A. precatorius is relatively low. In the proposed study,
an agronomic management approach will be introduced to enhance crop productivity. A
comparison of Saga cultivated in compost and AB mix will be conducted and compared to control
(soil cultivation without compost) to investigate the potential of this treatment in increasing the
triterpenoid in Saga plant root and leaf tissue. Following the compost treatment, the content of
triterpenoid saponins will be measured by semi-quantitative analysis using the
Liebermann-Burchard methods and will be measured using a UV-Vis spectrophotometer.
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