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Hasil Pencarian

Ditemukan 5 dokumen yang sesuai dengan query
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Miftahul Jannah
"Biosurfaktan merupakan senyawa amfifatik yang dihasilkan dari metabolit mikroorganisme yang berperan sebagai agen untuk menurunkan tegangan antarmuka pada fluida yang tidak dapat bercampur. Biosurfaktan sangat potensial untuk diaplikasikan pada industri kilang minyak melalui teknologi MEOR. MEOR merupakan teknologi yang bertujuan untuk meningkatkan perolehan minyak bumi yang terperangkap di dalam media berpori pada reservoir. Pada penelitian ini telah dilakukan sintesis biosurfaktan dari Pseudomonas aeruginosa dengan memanfaatkan whey terozonasi sebagai sumber karbon pada medium fermentasi.
Hasil penelitian menunjukkan bahwa konsentrasi optimum biosurfaktan dicapai dengan ozonasi dan metode oil spreading test. Uji aktivitas biosurfaktan dilakukan dengan mengukur tegangan antarmuka dan tegangan permukaan menggunakan processor tensiometer. Crude biosurfaktan yang dihasilkan mampu menurunkan tegangan antarmuka crude oil sebesar 98,3% dan tegangan permukaan sebesar 23,7%.
......Biosurfactants is amphiphatic compound of microorganism metabolites which has a role as an agent to decrease the interface tension of the fluid which could not be mixed. It is very potential to applied on oil refineries industry through MEOR technology. MEOR is a technology that aims to enhance of oil recovery which trapped in porous media in the reservoir. In this research biosurfactants has been synthesized from Pseudomonas aeruginosa by utilizing ozonized cheese whey as a carbon source.
The result shows that the optimum concentration of biosurfactants achieved on fifteen minutes ozonation time and oil spreading test methods. Biosurfactants activity test is done by measuring the interfacial tension and surface tension using a tensiometer processor. Crude biosurfactants produced capable of lowering the interfacial tension of crude oil sample amounted to 98,3% and 23,7% of surface tension"
Depok: Fakultas Teknik Universitas Indonesia, 2013
S46842
UI - Skripsi Membership  Universitas Indonesia Library
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Tunyaporn Sirilert
"ABSTRACT
Although encapsulation efficiency of various biopolymers has been documented, no attempts have been made to investigate stability of α-mangostin entrapped and an encapsulation efficiency of biopolymer beads in different conditions. In this study, the efficiency of whey protein (W) and Alginate (A) to encapsulate α-mangostin was assessed through the investigation of the α-mangostin content stored at different conditions. Particle size and stiffness of biopolymer beads were measured. An increase in whey protein content enhanced gel viscosity, which resulted in particles with significantly higher dimension size and weight (p<0.05). A decrease in encapsulation efficiency was found at higher temperatures and lower pH values. However, higher encapsulation efficiency was observed in gel beads which contained whey protein (50A : 50W and 60A : 40W) at all conditions. An increased protein content resulted in a higher gel network density and retention of the α-mangostin in the beads. The released α-mangostin content decreased with increasing protein content at all conditions during storage. The results confirmed that the α-mangostin stability was significantly governed by both conditions and the use of whey protein to protect the target compound."
Pathum Thani: Thammasat University, 2018
670 STA 23:2 (2018)
Artikel Jurnal  Universitas Indonesia Library
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Liesma Dzulfia
"Latar Belakang: Karies gigi merupakan penyakit gigi dengan prevalensi tinggi di Indonesia.
Tujuan: Mengetahui pengaruh susu sapi dan protein whey terhadap kekerasan email gigi setelah demineralisasi.
Metode : Dua puluh satu email gigi diukur kekerasannya sebelum perlakuan, setelah demineralisasi dengan asam sitrat 1%, serta setelah perendaman dengan susu sapi, protein whey, dan aquades selama 90 menit.
Hasil: Semua kelompok perlakuan remineralisasi menunjukkan peningkatan nilai kekerasan yang bermakna (p<0,05). Kelompok yang direndam dengan susu sapi dan kelompok protein whey menunjukkan hasil yang tidak berbeda bermakna (p>0,05).
Kesimpulan: Susu sapi maupun protein whey dapat meremineralisasi gigi.

Background: Caries has high prevalence oral problem in Indonesia.
Objective: To evaluate the effect of bovine milk and protein whey on the enamel hardness after demineralization.
Methods: Twenty one tooth enamel measured its hardness before the treatment, after demineralized with 1% citric acid, and after immersed in bovine milk, whey protein and aquades for 90 minutes.
Results: Significant increase of enamel hardness in all remineralization groups (p<0,05). There was no significant differences between group with immersed in bovine milk and whey protein group (p>0,05).
Conclusion: Bovine milk and whey protein can remineralize enamel surface.
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Jakarta: Fakultas Kedokteran Gigi Universitas Indonesia, 2016
S-Pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Hugo Satryo Mulyono
"Standardisasi dan labelisasi produk pangan olahan termasuk produk susu whey protein merupakan hal yang penting, dikarenakan konsumen dapat memilih sesuai dengan kebutuhannya masing-masing. Tujuan utama dari penelitian ini adalah menjaga keamanan konsumen terhadap pelaku usaha yang memproduksi susu protein lokal maupun import, agar terhindar dari peristiwa yang merugikan konsumen. Selain itu, mengetahui peran BPOM dan BSN serta memastikan kualitas dan kepatuhan pelaku usaha terhadap standar yang ditetapkan, meningkatkan regulasi yang berlaku, serta membandingkan pengaturan dan pengaplikasiannya yang berlaku di negara Amerika Serikat. Metode dalam penelitian ini menggunakan pendekatan doktrinal berdasarkan norma yang berlaku, peraturan di Indonesia, perbandingan pengaturan di Amerika Serikat, serta teori-teori yang relevan dengan fakta yang terjadi. Jenis data yang digunakan adalah jenis data sekunder berupa studi kepustakaan yang mengacu pada hukum positif di Indonesia, diantaranya yaitu KUHPer, UUPK, UU Pangan, UU Kesehatan, dan peraturan terkait lainnya. Adapun hasil dari penelitian ini mengindikasikan bahwa Indonesia tidak mengatur secara khusus terkait dengan labelisasi seperti klaim struktur/fungsi, klaim gizi tambahan, transparansi label, pembaharuan standar terhadap klasifikasi produk susu protein secara spesifik, dan sistem pengawasan terhadap peredaran produk susu protein di pasar dalam negeri yang berbeda dengan Amerika Serikat melalui pengimplementasian regulasi yang lebih spesifik. Oleh karena itu, penulis melalui penelitian ini menyarankan pemerintah, lembaga otoritas, dan pelaku usaha untuk meningkatkan dan mengadopsi regulasi yang berlaku di Amerika Serikat untuk diaplikasikan di Indonesia dengan tujuan masyarakat selaku konsumen teredukasi dan meningkatkan transparansi produk susu protein agar mendapatkan kepercayaan masyarakat serta membuka peluang untuk meningkatkan daya jual produk.
......Standardization and labeling of processed food products including whey protein milk products are important, because consumers can choose according to their own needs. The main objective of this research is to maintain consumer safety against business actors who produce local and imported protein milk, in order to avoid events that harm consumers. In addition, knowing the role of BPOM and BSN and ensuring the quality and compliance of business actors with established standards, improving applicable regulations, and comparing the regulation and its application that applies in the United States. The method in this research uses a doctrinal approach based on applicable norms, regulations in Indonesia, regulatory comparisons in the United States, and theories relevant to the facts that occur. The type of data used is secondary data in the form of literature studies that refer to positive law in Indonesia, including the Civil Code, Consumer Protection Act, Food Law, Health Law, and other related regulations. The results of this study indicate that Indonesia does not regulate specifically related to labeling such as structure/function claims, additional nutrition claims, label transparency, standard updates to the specific classification of protein milk products, and a supervisory system for the circulation of protein milk products in the domestic market which is different from the United States through the implementation of more specific regulations. Therefore, the author through this research suggests that the government, authority institutions, and business actors improve and adopt regulations that apply in the United States to be applied in Indonesia with the aim of educating the public as consumers and increasing the transparency of protein milk products in order to gain public trust and open up opportunities to increase product marketability."
Depok: Fakultas Hukum Universitas Indonesia, 2024
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UI - Skripsi Membership  Universitas Indonesia Library