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Andre,Irma Isnafia Arief,Astari Apriantini,Anuraga Jayanegara,Cahyo Budiman 한국축산식품학회 2022 한국축산식품학회지 Vol.42 No.2
This study aimed to evaluate the effectiveness of propolis extract as a natural preservative for livestock products in term of chemical and microbiological characteristics by meta-analysis. The stages carried out in this study were identification, selection, checking suitability, and the resulting selected articles were used in the meta-analysis. The selection results obtained a total of 22 selected journal articles consisting of 9 articles for analysis of the antimicrobial activity of propolis extract and 13 articles for analysis of the chemical and mirobiological characteristics of livestock products. The articles were obtained from electronic databases, namely Science Direct and Google Scholar. The model used in this study is the random-effect model involving two groups, control and experimental. Heterogeneity and effect size values were carried out in this study using Hedge’s obtained through openMEE software. Forest plot tests and data validation on publication bias was obtained using Kendall’s test throught JASP 0.14.1 software. The results showed that there is a significant relationship between propolis extract with the results of the antimicrobial activity (p<0.05). In addition, the results of the application of propolis extract on the livestock products for the test microbes and the value of thiobarbituric acid reactive substances (TBARs) showed significant results (p<0.05). Conclusion based on the random-effect model on the effectiveness of antimicrobial activity of propolis extract and their apllication as a natural preservative of the chemical and microbiological characteristics of livestock products is valid by Kendall’s test (p>0.05). Propolis in this case effectively used as natural preservatives in livestock products.
Andre,Irma Isnafia Arief,Astari Apriantini,Anuraga Jayanegara,Cahyo Budiman 한국축산식품학회 2022 한국축산식품학회지 Vol.42 No.1
This study aimed to evaluate the effectiveness of propolis extract as a natural preservative for livestock products in term of chemical and microbiological characteristics by meta-analysis. The stages carried out in this study were identification;selection;checking suitability;and the resulting selected articles were used in the meta-analysis. The selection results obtained a total of 22 selected journal articles consisting of 9 articles for analysis of the antimicrobial activity of propolis extract and 13 articles for analysis of the chemical and mirobiological characteristics of livestock products. The articles were obtained from electronic databases;namely Science Direct and Google Scholar. The model used in this study is the random-effect model involving two groups;control and experimental. Heterogeneity and effect size values were carried out in this study using Hedge’s obtained through openMEE software. Forest plot tests and data validation on publication bias was obtained using Kendall’s test throught JASP 0.14.1 software. The results showed that there is a significant relationship between propolis extract with the results of the antimicrobial activity (p<0.05). In addition;the results of the application of propolis extract on the livestock products for the test microbes and the value of thiobarbituric acid reactive substances (TBARs) showed significant results (p<0.05). Conclusion based on the random-effect model on the effectiveness of antimicrobial activity of propolis extract and their apllication as a natural preservative of the chemical and microbiological characteristics of livestock products is valid by Kendall’s test (p>0.05). Propolis in this case effectively used as natural preservatives in livestock products.
Andre´ Luiz A. Pizzolatti,Florian Gaudig,Daniel Seitz,Carlos R. M. Roesler,Gean Vitor Salmoria 한국조직공학과 재생의학회 2018 조직공학과 재생의학 Vol.15 No.6
BACKGROUND: Glucosamine hydrochloride (GlcNHCl) has been shown to inhibit cell growth and matrix synthesis, but not with N-acetyl-glucosamine (GlcNAc) supplementation. This effect might be related to an inhibition of critical growth factors (GF), or to a different metabolization of the two glucosamine derivatives. The aim of the present study was to evaluate the synergy between GlcNHCl, GlcNAc, and GF on proliferation and cartilage matrix synthesis. METHOD: Bovine chondrocytes were cultivated in monolayers for 48 h and in three-dimensional (3D) chitosan scaffolds for 30 days in perfusion bioreactors. Serum-free (SF) medium was supplemented with either growth factors (GF) TGF-b (5 ng mL-1) and IGF-I (10 ng mL-1), GlcNHCl or GlcNAc at 1mM each or both. Six groups were compared according to medium supplementation: (a) SF control; (b) SF ? GlcNHCl; (c) SF ? GlcNAc; (d) SF ? GF; (e) SF ? GF ? GlcNHCl; and (f) SF ? GF ? GlcNAc. Cell proliferation, proteoglycan, collagen I (COL1), and collagen II (COL2) synthesis were evaluated. RESULTS: The two glucosamines showed opposite effects in monolayer culture: GlcNHCl significantly reduced proliferation and GlcNAc significantly augmented cellular metabolism. In the 30 days 3D culture, the GlcNHCl added to GF stimulated cell proliferation more than when compared to GF only, but the proteoglycan synthesis was smaller than GF. However, GlcNAc added to GF improved the cell proliferation and proteoglycan synthesis more than when compared to GF and GF/GlcNHCl. The synthesis of COL1 and COL2 was observed in all groups containing GF. CONCLUSION: GlcNHCl and GlcNAc increased cell growth and stimulated COL2 synthesis in long-time 3D culture. However, only GlcNAc added to GF improved proteoglycan synthesis.