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      Sifat Fungsional Yoghurt Sinbiotik Susu Kambing dengan Variasi Kultur Bakteri Asam Laktat pada Lama Penyimpanan Berbeda

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      Date
      2026
      Jenis/Type
      Tesis
      Subtype
      Theses
      Author
      Fauzi, Chandra Maulana
      Arief, Irma Isnafia
      Budiman, Cahyo
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      Abstract
      Pola hidup masyarakat mulai mengalami perubahan signifikan seiring dengan perkembangan teknologi. Sistem jual beli online menawarkan berbagai jenis makanan siap saji (junk food) yang tinggi akan lemak jenuh, gula, dan garam. Kondisi tersebut meningkatkan akumulasi radikal bebas dalam tubuh dan berdampak pada patogenesis hipertensi sehingga diperlukan adanya strategi preventif melalui pola konsumsi pangan yang sehat. Produk susu fermentasi telah terbukti melalui penelitian sebelumnya mampu meningkatkan aktivitas antioksidan melalui pembentukan peptida bioaktif dan transformasi senyawa fenolik. Yoghurt sinbiotik merupakan produk olahan susu yang difermentasi dengan kultur Lactobacillus bulgaricus, Streptococcus thermophillus, dan Lactiplantibacillus plantarum subsp. plantarum strain IIA-1A5 serta dengan penambahan prebiotik FOS dan pektin yang dapat mendukung aktivitas fermentasi menjadi lebih optimal. Yoghurt sinbiotik susu kambing berpotensi sebagai pangan fungsional karena mengandung gizi yang lengkap serta komponen bioaktif yang memiliki dampak positif bagi kesehatan di luar dari gizi yang terkandung di dalamnya. Penelitian ini bertujuan menganalisis pengaruh dari perbedaan kultur bakteri berbeda dan lama penyimpanan berbeda melalui parameter fisikokimia, mikrobiologi, proksimat, organoleptik serta aktivitas antioksidan dan aktivvitas antihipertensi pada produk yoghurt sinbiotik dengan penambahan prebiotik FOS dan pektin. Rancangan yang digunakan pada penilitian ini adalah rancangan acak lengkap (RAL) pola faktorial (3x3) dengan tiga ulangan. Faktor pertama adalah perlakuan kultur bakteri yang digunakan pada fermentasi yoghurt, faktor kedua adalah perlakuan lama penyimpanan yoghurt. Perbedaan kultur bakteri dan lamanya penyimpanan memberikan pengaruh signifikan terhadap parameter mikrobiologi, karakteristik fisikokimia, parameter proksimat, serta memperoleh penilaian disukai pada sebagian besar atribut pengujian organoleptik. Sementara itu sifat fungsional yoghurt sinbiotik berupa aktivitas antioksidan memperoleh hasil berbeda signifikan antar sampel yoghurt pada sampel fraksi raw, sedangkan pada aktivitas antihipertensi memperoleh hasil berbeda signifikan antar sampel yoghurt pada fraksi 10-50 kDa. L. plantarum subsp. plantarum strain IIA-1A5 efektif menghambat aktivitas antihipertensi dibuktikan dengan aktivitas penghambatan ACE yang lebih tinggi pada yoghurt yang difermentasi dengan kultur L. plantarum subsp. plantarum strain IIA-1A5.
       
      People's lifestyles have begun to experience significant changes along with technological developments. Online platforms offer various types of fast food (junk food) that are high in saturated fat, sugar, and salt. These conditions increase the accumulation of free radicals in the body and affect the pathogenesis of hypertension, thus requiring preventive strategies through healthy dietary patterns. Previous studies have proven that fermented milk products can increase antioxidant activity through the formation of bioactive peptides and the transformation of phenolic compounds. Synbiotic yogurt is a processed milk product fermented with Lactobacillus bulgaricus, Streptococcus thermophilus, and Lactiplantibacillus plantarum subsp. plantarum strain IIA-1A5 cultures, along with the addition of FOS and pectin prebiotics to support more optimal fermentation activity. Goat milk synbiotic yogurt has the potential to serve as a functional food because it contains complete nutrients and bioactive components that provide positive health impacts beyond its basic nutritional content. This study aimed to analyze the effect of different bacterial cultures and storage durations on the physicochemical, microbiological, proximate, and organoleptic parameters, as well as the antioxidant and antihypertensive activities of synbiotic yogurt products with the addition of FOS and pectin prebiotics. The experimental design used in this study was a Completely Randomized Design (CRD) with a 3x3 factorial pattern and three replications. The first factor was the bacterial culture treatment used in the yogurt fermentation, and the second factor was the yogurt storage duration. The differences in bacterial cultures and storage durations significantly affected the microbiological parameters, physicochemical characteristics, and proximate parameters, and obtained preferred scores in most of the organoleptic test attributes. Meanwhile, the functional properties of the synbiotic yogurt in terms of antioxidant activity showed significantly different results among the yogurt samples in the raw fraction, whereas the antihypertensive activity showed significantly different results among the yogurt samples in the 10-50 kDa fraction. L. plantarum subsp. plantarum strain IIA-1A5 was effective in exhibiting antihypertensive activity, as evidenced by the higher ACE inhibitory activity in the yogurt fermented with the L. plantarum subsp. plantarum strain IIA-1A5 culture.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/178896
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      • MF - Animal Science [1379]

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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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