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All Journal Jurnal Teknologi Dan Industri Pangan Jurnal Mutu Pangan : Indonesian Journal of Food Quality
Winiati P. Rahayu
Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, IPB University, Bogor
Agriculture, Biological Sciences & Forestry Chemistry Industrial & Manufacturing Engineering Public Health

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SUSU FERMENTASI DENGAN BIJI NANGKA SEBAGAI PREBIOTIK Winiati P. Rahayu; Suliantari Suliantari; Umi Kartika Safitri; Wibisono Adhi
Jurnal Teknologi dan Industri Pangan Vol. 31 No. 2 (2020): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6066/jtip.2020.31.2.138

Abstract

Jackfruit seeds (Artocarpus heterophyllus Lam.) contain dietary fiber, thus it is potential as prebiotic to be used in fermented milk drink. This research aimed to obtain the fermented milk composition made from fresh milk and jackfruit seed flour containing active lactic acid bacteria (LAB), preferred hedonic level and to identify the chemical properties of the resulting fermented milk. Variables of this research were the jackfruit seed flour concentrations of 4, 5, 6% (w/v) and two LAB used (Lactobacillus plantarum and Lactobacillus brevis). The composition was selected based on the viable number of LAB, pH value, and sensory quality. The selected composition was the fermented milk made of fresh milk and 4% (w/v) jackfruit seed flour and L. brevis. The viable number of LAB of the fermented milk was 10.59 log CFU/mL. The sensory quality of the fermented milk was neutral until rather preferred for color, flavor, taste, texture, and overall. The chemical contents (%b/b) of product was 78.16% of moisture content, 2.34% of ash content, 2.85% of fat content, 3.15% of protein content, 13.51% of carbohydrate content, and 1.73% of lactic acid content.
SIMPLEKS DAN MULTIPLEKS PRE-ENRICHMENT-PCR UNTUK DETEKSI Salmonella Enteritidis DAN Typhimurium PADA KARKAS AYAM Siti Nurjanah; Winiati P. Rahayu; Ratih Dewanti-Hariyadi; Ni Gusti Ayu Made Widyatari Asthiti; Rahadina Praba Melati
Jurnal Teknologi dan Industri Pangan Vol. 32 No. 2 (2021): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6066/jtip.2021.32.2.148

Abstract

A PCR assay has been developed and applied to detect Salmonella contamination in chicken carcasses. However, a concentration fewer than 3 cells per gram lead to false-negative results due to difficulties in the DNA extraction. The objective of this study was to evaluate of the influence of pre-enrichment on the sensitivity of simplex and multiplex PCR methods the detection of for Salmonella spp., S. Enteritidis and S. Typhimurium in chicken carcasses. Artificial contamination was done using very low number of Salmonella Hadar, S. Enteritidis dan S. Typhimurium and pre-enrichment was carried out by 8 hours incubation in non-selective (BPW) medium. The results showed that simplex PCR could detect Salmonella spp., S. Enteritidis and S. Typhimurium at initial numbers of 2.3, 0.9 and 2.3 MPN/mL of cells in broth medium, respectively. A multiplex PCR could detect mixed culture of the three Salmonella serovars at an initial number of 0.73 MPN/mL of cells. When compared to non-enrichment treatment, simplex pre-enrichment-PCR gave an increase in the percentage of positive results in chicken carcasses (n= 12), from 75 to 100% for Salmonella spp., from 8 to 58% for S. Typhimurium, and from 58 to 75% for S. Enteritidis. Increasing in the positive percentage was also occurred at multiplex pre-enrichment-PCR, however the concentration of S. Enteritidis primer was not optimum for detection. Pre-enrichment step significantly increases the sensitivity of PCR-based assay for detection Salmonella.
Titik Kritis Keamanan Pangan pada Tahap Pengolahan dan Penyajian Beberapa Jenis Minuman Es Siti Nurjanah; Qonitatin Wafiyah; Winiati P. Rahayu; C. C. Nurwitri
Jurnal Mutu Pangan : Indonesian Journal of Food Quality Vol. 8 No. 2 (2021): Jurnal Mutu Pangan
Publisher : Department of Food Science and Technology (ITP), Faculty of Agricultural Technology, Bogor Agricultural University (IPB) in collaboration with the Indonesian Food and Beverage Association (GAPMMI), the National Agency of Drug and Food Control, and th

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmpi.2021.8.2.80

Abstract

In small vendors, iced beverages potentially contain microbiological and chemical hazards. The objective of this study was to identify critical points of hazard during processing and serving steps various types of most popular iced beverages. Based on processing step, there were identified nine types of iced beverages i.e. coconut, grass jelly, sliced fruit, orange, mixed, cendol, juice, blended and flavouring ice. The study was conducted by observation 90 vendors addressed to processing step, utilities, and environ-mental condition at low, middle and high economic scale of vendors. The critical points were determined according to the principles of HACCP. The results showed that more complex of processing step, lower economic scale and poor of facilities caused more critical points. Mixed ice (containing fruits, grass jelly and jelly) that sold at lower economic scale vendor has the most critical points number (11 out of 14), i.e. ice cube, water mixture, syrup, ice washing, ice downsizing, ice storage, fruits and ingredients washing process, fruit and jelly slicing process and storage, and mixing process. On the medium economic scale vendor, there were 1-3 critical points number and on the highest economic scale there was only one critical point number which was in the mixing process.
Evaluasi Kecukupan Panas dan Pengembangan Proses Alternatif dalam Sterilisasi Komersial Jamur Kancing dalam Kaleng Feri Kusnandar; Huda Hainun Dafiq; Winiati P. Rahayu; Dandy Irmawan
Jurnal Mutu Pangan : Indonesian Journal of Food Quality Vol. 10 No. 2 (2023): Jurnal Mutu Pangan
Publisher : Department of Food Science and Technology (ITP), Faculty of Agricultural Technology, Bogor Agricultural University (IPB) in collaboration with the Indonesian Food and Beverage Association (GAPMMI), the National Agency of Drug and Food Control, and th

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmpi.2023.10.2.100

Abstract

. This research aimed to evaluate the adequacy of heat treatment and redesign the commercial sterilization process for canned button mushrooms to ensure that the product meets the minimum sterilization requirement without undergoing excessive processes. The study conducted tests on heat distribution and penetration, calculated the sterilization value (F0) using the trapezium and Ball methods, and designed an alternative sterilization process to avoid excessive procedures. The sterilization process for canned mushrooms, with a can dimension of 300x407, involved a temperature of 132°C for 16 minutes, resulting in an F0 value of 161.7 minutes. This value far exceeds the required minimum F0 value. To optimize the process, an alternative sterilization procedure was developed. It involved a temperature of 126°C, a process time of 10 minutes, and an initial product temperature of 40–50°C. This alternative process yielded an F0 value of 10 minutes. Furthermore, additional alternative process conditions were designed, with considerations to various process times (Pt), initial temperatures (Ti), retort temperatures (TR), and F0 values.
Prevalensi Cemaran Bakteri Indikator Sanitasi dan Patogen pada Daging Ayam dan Produk Olahannya di Indonesia: Sistematika Review dan Meta-Analisis Sri Madiarti Sipayung; Winiati P. Rahayu; Siti Nurjanah
Jurnal Mutu Pangan : Indonesian Journal of Food Quality Vol. 10 No. 2 (2023): Jurnal Mutu Pangan
Publisher : Department of Food Science and Technology (ITP), Faculty of Agricultural Technology, Bogor Agricultural University (IPB) in collaboration with the Indonesian Food and Beverage Association (GAPMMI), the National Agency of Drug and Food Control, and th

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmpi.2023.10.2.116

Abstract

Chicken meat, a staple of the Indonesian diet, undergoes extensive examination for contamination across diverse regions, yielding different findings. Using a comprehensive meta-analysis approach by combining previous researchees, making the results are widely applicable and understandable. This research aimed to obtain prevalence of bacterial contamination and pathogenic agents in both raw chicken meat and processed chicken products in Indonesia. The investigation occured in two sequential phases: first, a systematic review, including literature retrieval from databases like Google Scholar, Cross Ref, Pro Quest, PubMed, and Science Direct, followed by literature screening and data extraction. Then, in the second stage was conducted a meta-analysis. Effect size measurements, primarily the proportion/prevalence of bacterial contamination, are calculated using the random-effects model via the DerSimonian–Laird method. Analysis of 44 studies from 25 carefully selected literature sources shows that the prevalence of bacterial contami-nation in Indonesian chicken meat and its processed derivatives is 32.8% (95% CI: 21.6-44.1, I2 = 99.49%). To address the noticeable heterogeneity, sub-group meta-analyses was performed, which was categorized by sample type, the specific contaminating bacteria, and the sampling location. The sub-group meta-analysis based on sample type highlights processed chicken meat as having the highest prevalence at 47.8%. When broken down by bacterial type, contamination rates reveal E. coli (45.3%), Salmonella sp. (30.6%), Campylo-bacter sp. (20%), and L. monocytogenes (15.7%) as significantly influencing the prevalence of bacterial contamination in Indonesian samples. Geographically, traditional markets emerge as the primary source of bacteria-contaminated samples, with a prevalence rate of 31.2%.
Peningkatan Higiene Sanitasi Dapur Sentral PT XYZ dengan Analisis VRIO (Valuable, Rare, Imitate to Cost, Organized) Febby Barita Lumban Tobing; Sugiyono Sugiyono; Winiati P. Rahayu
Jurnal Mutu Pangan : Indonesian Journal of Food Quality Vol. 12 No. 1 (2025): Jurnal Mutu Pangan
Publisher : Department of Food Science and Technology (ITP), Faculty of Agricultural Technology, Bogor Agricultural University (IPB) in collaboration with the Indonesian Food and Beverage Association (GAPMMI), the National Agency of Drug and Food Control, and th

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmpi.2025.12.1.76

Abstract

Cases of food poisoning often originate from households or food service businesses that do not follow proper handling procedures. PT XYZ is a food service business with a central kitchen that supplies 60 outlets. This study aimed to analyze the implementation of hygiene and sanitation practices during operations using the VRIO method, conducted in three research stages. The company demonstrated a commitment to hygiene and sanitation, with observations showing a compliance rate of 80.04%, categorized as good. However, the company had not yet obtained formal certification. A strong correlation (p<0.01) was found between the knowledge level and training of food handlers, as well as the knowledge level of the person in charge of food services, and the implementation of hygiene and sanitation practices. The resource factor showed below-standard performance in the complaint handling system, work environment, and employee capabilities. Similarly, the capability factor demonstrated suboptimal performance in several areas, including raw material storage, the ability to address emerging issues, production efficiency, storage and disposal of goods, supervision and control, and efforts to enhance employee competence in hygiene and sanitation practices.
Pengetahuan, Sikap, dan Perilaku Higiene dan Sanitasi Penjamah Pangan di Taman Tegalega Kota Bandung Nurani Putri Setya Pratiwi; Winiati P. Rahayu; Siti Nurjanah
Jurnal Mutu Pangan : Indonesian Journal of Food Quality Vol. 12 No. 1 (2025): Jurnal Mutu Pangan
Publisher : Department of Food Science and Technology (ITP), Faculty of Agricultural Technology, Bogor Agricultural University (IPB) in collaboration with the Indonesian Food and Beverage Association (GAPMMI), the National Agency of Drug and Food Control, and th

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmpi.2025.12.1.84

Abstract

Tegalega Park is one of the well-known tourist destinations in Bandung, renowned for its historical significance. The high number of visitors makes it a potential market for vendors, including street food vendors. Food processors and handlers must maintain proper sanitation and hygiene to prevent microbial contamination and ensure food safety. This study aimed to assess the knowledge, attitudes, and hygiene and sanitation practices of food handlers in Tegalega Park, examine the correlation between these factors, and propose recommendations for improvement. A survey methodology was employed, with food handlers as respondents. Questionnaires were distributed directly in printed form, and respondents were selected purposively based on the criteria of being street food vendors operating in Tegalega Park. A total of 154 qualified respondents participated in the study. The results indicated that food handlers demonstrated good knowledge, attitudes, and hygiene and sanitation practices, with scores of 53.90% for knowledge, 54.55% for attitudes, and 57.79% for hygiene and sanitation practices (all ≥70% threshold). Respondent characteristics, including age, education level, work experience, and training experience, showed a positive correlation with knowledge, attitudes, and hygiene and sanitation practices. The correlation between attitudes and practices was stronger than that between knowledge and attitudes or knowledge and practices. Overall, there is still a need to enhance knowledge, attitudes, and practices through the equitable distribution of cleaning facilities and targeted counselling or training programs.
Co-Authors C. C. Nurwitri Dandy Irmawan Febby Barita Lumban Tobing Feri Kusnandar Huda Hainun Dafiq Melati, Rahadina Praba Ni Gusti Ayu Made Widyatari Asthiti Nurani Putri Setya Pratiwi Qonitatin Wafiyah Ratih Dewanti -Hariyadi Siti Nurjanah Sri Madiarti Sipayung Sugiyono . Suliantari Suliantari Umi Kartika Safitri Wibisono Adhi