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namely solid. For the third scent, content and the consistency of the
the distinctive scented formula is soap to increase harshly (Agustini
green betel leaves and turmeric, and Agustina, 2017). In addition,
but there is a difference in the the water level also decreases
strength of the scent for formulas along with the addition of the
2-4 weeks, namely, the distinctive concentration of green betel leaf
aroma of green betel leaves ethanol extract used in each
begins to decrease. This may be formula, this is because with the
because the essential oil content addition of extracts, the amount of
of green betel leaves has water used in soap formulas is
evaporated. The color for each also reduced. The same thing
formula is also different, where the happened in yellow turmeric
higher the concentration of the rhizome extracts also decreased.
extract used in the formula, the In the study, it is similar that the
more intense the color of the water content of the preparation
preparation. The same thing also decreases every week because
happened in research on bar soap the water contained in the
using mangosteen peel extracts preparation vaporates (Sukawaty
ranging from yellowish white to et al., 2016).
dark brown color. This happens C. pH Test
because of the difference in the
amount of extracts added. The pH testing is one of the quality
more extracts used in the color of requirements for solid soap,
the soap, the more concentrated because the pH value determines
the soap becomes (Aminudin et whether solid soap is suitable for
al., 2019). The results of the use or not. pH values that are too
respondents to their preferences high or too low can cause skin
(Figure 8) showed that the value irritation (Sari et al. 2010). From
of texture, aroma, softness, and the pH testing data of solid soap
the amount of foam in "Lavitzam" ethanol extract of green betel
soap was high, but the color of the leaves, with the addition of yellow
soap was low. This is because the turmeric, the same pH value for
color was less attractive to the each formulation, namely pH 10,
respondents. where the pH 9-11 is included in
the pH range of solid soap. While
B. Water Level Test
the acidity of yellow turmeric
The results of the water level test extract, which has a pH in the
on solid soap ethanol extract of range of 11. The increase in the
green betel leaves for 2-4 weeks pH of this soap is due to the
showed a significant decrease alkaloid content in yellow turmeric.
every week. This is because The pH results of solid soap
during storage, the water content ethanol extracts of green betel
pada Soap undergoes leaves and yellow turmeric
evaporation. This evaporation showed a relatively normal and
causes the soap to lack water usable pH.
