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Journal : Journal of Multidiscipline and Collaboration Research

Analisis Kandungan Protein pada Susu Sapi Perah Kemasan dari Peternakan Desa Gunung Perak Sinjai Barat Islawati, Islawati; Nurlaela, Nurlaela; Adam, Adam
Journal of Multidiscipline and Collaboration Research Vol. 1 No. 1 (2024)
Publisher : Yayasan Pendidikan dan Pengembangan Harapan Ananda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58740/jmcr.v1i1.287

Abstract

Humans require food and beverages that serve as building materials, regulators, and sources of energy. Protein is an essential component that functions in tissue maintenance, formation of essential body compounds, antibody production, and maintaining bodily balance. However, the protein content in packaged dairy cow milk can decrease over storage time after packaging, which may affect the nutritional value received by consumers. This study aims to identify and analyze changes in protein levels in packaged dairy cow milk over three days after packaging. The research method used is UV-VIS spectrophotometry with a Genesys 10-S spectrophotometer to measure the protein content in dairy cow milk samples taken from Gunung Perak Village, Sinjai Barat Subdistrict, Sinjai Regency. The results showed that the protein content of the milk one day after packaging was 0.027%, two days after packaging was 0.021%, and three days after packaging was 0.019%. This decrease in protein levels indicates that the duration of storage after packaging negatively affects the protein quality of the milk. The implication of these research findings is the need for special attention in the storage and distribution process of packaged dairy cow milk to maintain its protein content, ensuring that the nutritional value received by consumers remains optimal. Further research with different methods is recommended to obtain more in-depth information about the factors influencing changes in protein levels in the milk.
Uji Daya Hambat Ekstrak Lidah Buaya (Aloe barbadensis miller) terhadap Pertumbuhan Bakteri Propionibacterium Acnes Asyahra, St. Fatima; Islawati, Islawati; Arwie, Dzikra
Journal of Multidiscipline and Collaboration Research Vol. 1 No. 1 (2024)
Publisher : Yayasan Pendidikan dan Pengembangan Harapan Ananda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58740/jmcr.v1i1.288

Abstract

Aloe vera (Aloe barbadensis miller) contains antibacterial compounds such as tannins and saponins, which have the potential to combat Propionibacterium acnes, the bacteria responsible for acne. This study aims to evaluate the inhibitory effect of aloe vera extract on P. acnes through a laboratory experimental method. The extract was obtained through maceration using various concentrations: 20%, 40%, 60%, 80%, and 100%. Testing was conducted in triplicate, with clindamycin as the positive control and distilled water as the negative control. The well diffusion method was used for testing, followed by analysis with a One-Way ANOVA test. Results showed p = 0.000, indicating that aloe vera extract significantly inhibits P. acnes. Post hoc LSD analysis revealed significant differences between concentrations, except between clindamycin and the 100% concentration (p > 0.05). The highest mean inhibition zone was found at the 100% concentration (16.6 mm) and the lowest at 20% (9.3 mm). This study suggests that aloe vera extract has potential as a natural antibacterial agent for acne treatment, providing an alternative to reduce synthetic antibiotic use and the risk of bacterial resistance.