Page 126 - Jurnal Penelitian MTsN 6 Jakarta
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second week after the preparation C. Acidity Test
is made until the fifth week. The A total of 1g of solid soap
purpose of this test is to determine preparation of green betel leaf
the change in the physical shape extract is put into a glass cup and
of solid soap preparations during dissolved with 100 ml of aquadest,
storage (Sukawaty et al., 2016).
after which dip universal pH paper
B. Water Level Test into the sample and observe the
pH of the preparation
How to do a water level test is to
weigh the cups that have been D. Foam Stability Test
o
dried in the oven at 105 C for 30 This measurement is made to
minutes (W1). Then weigh ± 5g, measure the stability of soap in
then add glycerin 10g, sodium the form of foam. The test was
lauryl sulfate 1g, NaCl 0.2g and carried out by putting 1g of soap
stir until everything is into a 25ml test tube containing 10
homogeneous. Take the glass cup ml of aquadest, then shaking for 1
down from the spirit lamp then the minute by reversing. The height of
mixture is mixed for 2 minutes the formed foam is measured
then add 10g NaOH and the mixer using a ruler (initial foam height).
again for 1 minute pour The foam height was measured
into the mold let it sit until the soap again after 5 minutes (final foam
hardens, then an evaluation is height) (Rizka, 2017). The stability
carried out on the solid soap of the foam is calculated by the
preparation. Put the preparation in formula:
a cup, heat in the oven at 105 C
o
for 1 hour, cool in a desiccant until Foam stability test:
room temperature and then weigh. = 100% - (% busa yang hilang)
Repeat the same procedure until The missing foam:
the preparation weight is constant = T1 – T2 x 100%
(W2). The moisture content in T1
soap is not more than 15% Explanation:
(Indonesian National Standard, T1 = Initial foam height
2016). Calculate the water level of T2 = Height of the final foam
soap with the formula:
Water level = W1 – W2 x 100% 3.1 Result
W
Explanation: A. Organoleptic Test
W1 = cup weight + sample The results of organoleptic testing
before warming up (g) were carried out at room
W2 = cup weight + sample temperature storage, which
After warming up (g) showed that the soap
W = Sample weight (g) preparations on the texture of
green betel leaves from the four
formulas had the same texture.
