Pramadita, Ananda (2020) Aktivitas antibakteri infusa daun jambu biji merah dalam hard candy terhadap bakteri Staphylococcus aureus dan Pseudomonas aeruginosa = Antibacterial activity of red guava leaves infusion in hard candy on staphylococcus aureus and pseudomonas aeruginosa bacteria. Bachelor thesis, Universitas Pelita Harapan.
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Abstract
ISPA merupakan air borne disease yang paling sering menyerang manusia akibat
aktivitas bakteri Staphylococcus aureus dan Pseudomonas aeruginosa pada saluran
pernapasan. Salah satu gejala ISPA adalah batuk. Infusa daun jambu biji dapat
digunakan sebagai pereda batuk alternatif. Pemberian infusa daun jambu biji dalam
pembuatan hard candy diharapkan dapat menghambat pertumbuhan bakteri
Staphylococcus aureus dan Pseudomonas aeruginosa. Tujuan dari penelitian ini
adalah menentukan aktivitas antibakteri infusa daun jambu biji dan menentukan
konsentrasi infusa daun jambu biji dalam hard candy pencegah batuk yang
menghasilkan aktivitas antibakteri serta sifat organoleptik terbaik. Perolehan air
seduhan dilakukan dengan pemanasan daun jambu biji dalam air (1:2) selama 15
menit pada suhu 90oC. Penentuan aktivitas antibakteri infusa daun jambu biji dan
hard candy dilakukan dengan pengukuran diameter zona hambat. Analisis
organoleptik dilakukan dengan skoring dan hedonik. Hasil penelitian menunjukkan
bahwa zona hambat infusa daun jambu biji konsentrasi 20-100% terhadap
Staphylococcus aureus adalah 14,03±0,275 - 20,35±0,419 mm, sedangkan terhadap
Pseudomonas aeruginosa adalah 13,70±0,278 - 18,48±0,275 mm. Nilai MIC dan
MBC infusa daun jambu biji adalah 4,76% dan 19,10% (Staphylococcus aureus)
serta 14,90% dan 59,60% (Pseudomonas aeruginosa). Hard candy dengan infusa
daun jambu biji konsentrasi 20-100% memiliki zona hambat terhadap
Staphylococcus aureus dan Pseudomonas aeruginosa, yaitu 12,50±0,155 -
17,36±0,090 mm dan 11,41±0,096 - 16,40±0,137 mm. Infusa daun jambu biji
dengan konsentrasi 20%, 40%, 60%, 80%, dan 100% serta hard candy infusa daun
jambu biji memiliki aktivitas antibakteri terhadap Staphylococcus aureus dan
Pseudomonas aeruginosa dengan daya hambat yang kuat. Konsentrasi infusa daun
jambu biji terbaik dalam hard candy berdasarkan aktivitas antibakteri dan uji
hedonik adalah sebesar 60% dengan zona hambat sebesar 15,99 ± 0,140 mm
(Staphylococcus aureus) dan 15,30 ± 0,117 mm (Pseudomonas aeruginosa). / ARI is an air borne disease that most often attacks human due to the activity of
Staphylococcus aureus and Pseudomonas aeruginosa in the respiratory tract. One
of ARI’s symptoms is cough. Guava leaves infusion can be used as an alternative
cough reliever. Adding the guava leaves infusion in the manufacture of hard candy
is expected to inhibit the growth of Staphylococcus aureus and Pseudomonas
aeruginosa. The purpose of this study is to determine the antibacterial activity of
guava leaves infusion and determine the concentration of guava leaves infusion in
cough suppressant hard candy that produces the best antibacterial activity and
organoleptic properties. The boiling water is obtained by heating guava leaves in
water (1:2) for 15 minutes at 90oC. Determination of the antibacterial activity of
guava leaves infusion and hard candy was carried out by measuring the diameter of
the inhibitory zone. Organoleptic analysis was performed by scoring and hedonic.
The results showed that the inhibition zone of guava leaves infusion concentration
of 20-100% against Staphylococcus aureus was 14.03 ± 0.275 - 20.35 ± 0.419 mm,
whereas against Pseudomonas aeruginosa was 13.70 ± 0.278 - 18.48 ± 0.275 mm.
MIC and MBC values of guava leaves infusion were 4,76% and 19,10%
(Staphylococcus aureus) and 14,90% and 59,60% (Pseudomonas aeruginosa).
Hard candy with guava leaves infusion concentration of 20-100% has an inhibition
zone against Staphylococcus aureus and Pseudomonas aeruginosa, which is 12.50
± 0.155 - 17.36 ± 0.090 mm and 11.41 ± 0.096 - 16.40 ± 0.137 mm. Guava leaves
infusion with concentrations of 20%, 40%, 60%, 80%, and 100% and hard candy
guava leaves infusion have strong antibacterial activity against Staphylococcus
aureus and Pseudomonas aeruginosa. The best concentration of guava leaves
infusion in hard candy based on antibacterial activity and hedonic test was 60%
with inhibition zones of 15.99 ± 0.140 mm (Staphylococcus aureus) and 15.30 ±
0.117 mm (Pseudomonas aeruginosa).
Item Type: | Thesis (Bachelor) |
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Creators: | Creators NIM Email ORCID Pramadita, Ananda NIM00000021923 mayangpramadita@gmail.com UNSPECIFIED |
Contributors: | Contribution Contributors NIDN/NIDK Email Thesis advisor Handayani, Ratna NIDN0311097601 ratna.handayani@uph.edu |
Uncontrolled Keywords: | aktivitas antibakteri; batuk; hard candy; infusa daun jambu biji |
Subjects: | T Technology > TP Chemical technology > TP368-456 Food processing and manufacture |
Divisions: | University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology |
Depositing User: | Users 6711 not found. |
Date Deposited: | 29 Aug 2020 14:45 |
Last Modified: | 29 Aug 2020 14:45 |
URI: | http://repository.uph.edu/id/eprint/10717 |