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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Prosiding Seminar Biologi Jurnal Kedokteran Brawijaya El-Hayah : Jurnal Biologi Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) Journal of Innovation and Applied Technology Research Journal of Life Science Jurnal Pangan dan Agroindustri Jurnal Teknologi Pertanian Industria: Jurnal Teknologi dan Manajemen Agroindustri Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Aplikasi Teknologi Pangan TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Teknologi Hasil Pertanian Canrea Journal: Food Technology, Nutritions, and Culinary Journal Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Jurnal Mnemonic Proceeding Biology Education Conference Agroindustrial Journal
Elok Zubaidah
Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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CHANGE DETECTION IN ALUMINUM ELECTRODE IMAGE DURING OHMIC HEATING USING PRINCIPAL COMPONENT ANALYSIS Dwi Hartono, Elvianto; Hardiansyah, Bagus; Lastriyanto, Anang; Zubaidah, Elok; Hendrawan, Yusuf
Jurnal Mnemonic Vol 7 No 2 (2024): Mnemonic Vol. 7 No. 2
Publisher : Teknik Informatika, Institut Teknologi Nasional malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/mnemonic.v7i2.8426

Abstract

In this paper, we propose a novel technique for unsupervised change detection dataset derived from a process pasteurization using aluminium plate left and right with frequencies 1kHz, 2kHz, 100Hz, 250Hz images using principal component analysis (PCA) and k-means clustering. The distinct image is partitioned into h × h non-overlapping blocks. orthonormal eigenvectors are extracted through PCA of non-overlapping block set to create an eigenvector space. Each pixel within the distinct image is characterized by a feature vector of a certain dimensionality. This feature vector is obtained projection the distinct image data onto the eigenvector space that has been generated. Change detection is accomplished by dividing the feature vector space into two clusters through the application of k-means clustering with k=2. Each pixel is then assigned to one of these two clusters based on the minimum Euclidean distance between the pixel's feature vector and the mean feature vector of the clusters. Empirical results validate the effectiveness of the proposed approach.
Establishment of Small Medium Enterprise (SMEs) at Babussalam Al-Firdaus Islamic Boarding School, Karangploso, Malang Nurcholis, Mochamad; Zubaidah, Elok; Putri, Widya Dwi Rukmi; Nur, Mokhamad; Hasna, Tanalyna; Putri, Aldila
Journal of Innovation and Applied Technology Vol 8, No 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2022.008.02.3

Abstract

To overcome these problems, our team, initiate the establishment of SMEs involving students at the Babussalam Al-Firdaus Islamic Boarding School through diversification of dairy-based processed products and bakery products. Introduction of some lectures including bakery products technology, milk processing technology, packaging and storage technology, food quality assurance and Good Manufacturing Practice (GMP), product trials and training activities are carried out offline at the Food Production and Training Center (FPTC), Universitas Brawijaya. The new SMEs empowerment of students and provide additional income for the Babussalam Al-Firdaus Islamic Boarding School to be financial independence.
Characterisation of honey using high-frequency ohmic heating based on image segmentation Hartono, Elvianto Dwi; Lastriyanto, Anang; Zubaidah, Elok; Hendrawan, Yusuf
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 7, No 3 (2024)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2024.007.03.8

Abstract

In the field of computer vision, image segmentation using a clustering approach was employed. This non-destructive method was applied to process ohmic heating in honey, aiming to achieve an efficient and time-saving mass production process. The K-means clustering algorithm converted RGB color data to Lab color space for effective segmentation. The validation of outcomes was conducted through the evolution of RMSE values and regression analysis for each frequency. Notably, at a precision frequency of 1 kHz, the results were as follows: RMSE Red 1.4902, RMSE Green 0.7017, RMSE Blue 0.3328, Regression Red 0.0792, Regression Green 0.5782, Regression Blue 0.202, and heat penetration regression 0.658. This proposed method was benchmarked against the conventional heat penetration analysis in ohmic heating.
The influence of sugar concentration and fermentation time of green tea kombucha (Camellia sinensis) on its halal and safety aspects Falasifah, Ratu; Diyah Dewanti, Beauty Suestining; Zubaidah, Elok; Sucipto, Sucipto
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 8, No 1 (2025)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2025.008.01.4

Abstract

Kombucha is a fermented tea beverage made from Camellia sinensis and sugar using a Symbiotic Culture of Bacteria and Yeast (SCOBY). It is known for its health benefits, including immune system support, antimicrobial activity, anti-inflammatory properties, and probiotic effects. However, its ethanol content raises concerns among the predominantly Muslim Indonesian population. This study aims to evaluate the influence of sugar concentration and fermentation time on the halal and safety aspects of green tea kombucha. A Randomized Block Design (RBD) was employed, with sugar concentrations of 5%, 7.5%, 10%, and 12.5% (w/v) and fermentation durations of 8, 10, and 12 days, resulting in 36 experimental samples. Data were analyzed using Two-Way ANOVA (α = 0.05) in IBM SPSS Statistics 26, followed by Duncan’s Multiple Range Test (DMRT) when interactions were significant. Measured parameters included pH, total acidity, and ethanol content. Results showed that fermentation time and sugar concentration significantly influenced pH (2.61–2.78), total acidity (0.055%–0.188%), and ethanol content (0.090%–0.199%). These values met halal and safety standards, with ethanol <0.5%, acidity 0.2%–0.9%, and pH 2.5–4.2. Thus, green tea kombucha is deemed safe and halal for consumption.
Kombucha Based on Javanese Turmeric (Cucurma zanthorrhiza and Cucurma zedoaria): Effect of Various Concentrations and Antioxidant Activity Zubaidah, Elok; Kusmiyati, Nur; Arum, Mentari Sekar; Hasfiani, Yuliatin; Sujuti, Hidayat
El-Hayah:Jurnal Biologi Vol 10, No 2 (2025): EL-HAYAH (VOL 10, NO 2 Maret 2025)
Publisher : Program Study of Biology, Science and Technology Faculty, UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v10i2.35542

Abstract

Temulawak (C.zanthoriza) and white turmeric  (C.zedoaria) are Indonesian herbal plants  widely used to treat various diseases including anti-inflammatory properties, neuroprotective, nephroprotective, antitumor, and hepatoprotective. A long-standing tradition, Kombucha is a drink produced by fermenting tea using combine of lactic acid bacteria, acetic acid bacteria and mold.  It's classified as a functional food due to its high antioxidant and antibacterial activity, suggesting potential benefits for disease prevention.This research aims to improve the functional value of kombucha by using temulawak and white turmeric. Kombucha is made from temulawak and white turmeric powder with various concentrations ranges 0.2 – 1% (w/v)) and a sugar concentration of 10% (v/v)). After 8 days of fermentation, temulawak and white turmeric kombucha were tested for pH, total acid, amount of phenol, and IC50. The effect of various concentrations temulawak and white turmeric as a substrate for kombucha demonstrated significant (p0.05) in reduction of pH, increased total phenol content, IC50 value of antioxidant activity, also increased total acid. The best treatment of temulawak and white turmeric kombucha was obtained at a concentration of 1% with a pH of 2.77 for temulawak kombucha and 2.80 for white turmeric kombucha; total acid of 4.38% for temulawak kombucha and 3.60% for white turmeric kombucha; total phenols were 232.48 mgGAE/ml for temulawak kombucha and 113.00 mgGAE/ml for white turmeric kombucha; The IC50 value was 30.82 ppm for temulawak kombucha and 40.15 ppm for white turmeric kombucha.
Antioxidant and antibacterial activity of sappan wood (Caesalpinia sappan L.) kombucha Zubaidah, Elok; Salafy, Rahma Aulia; Ningtyas, Dian Widya; Denty Wiryawan, Alivianisa Carissa
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 7, No 1 (2024)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2024.007.01.2

Abstract

Sappan wood (Caesalpinia sappan Linn) is well known for its antioxidants, anti-inflammatories, and antibacterials. Unfortunately, this plant has not been used properly. In this study, sappan wood is processed into a kombucha drink through fermentation. Kombucha fermentation gives sappan wood drink a distinct and pleasant flavor while improving quality. The study aimed to increase the functional value of kombucha using sappan wood as raw material. Kombucha was prepared with sappan wood powder (16 mesh size) at various concentrations (0.4, 0.8, 1.2, 1.6, and 2% (w/v)) and 10% (w/v) sugar concentration. The effect of various sappan wood concentrations as a substrate for kombucha demonstrated a significant (p<0.05) reduction in pH and improvement in total phenol content, IC50 value of antioxidant activity, and antibacterial activity against E. coli. The best sappan wood kombucha treatment was obtained at a concentration of 1.2% with pH of 3.85, total phenol of 874.44 mg GAE/mL, total sugar of 6.62%, IC50 value of 85.43 ppm, antibacterial activity against E. coli of 8.57 mm, and antibacterial activity against S. aureus of 7.99 mm.
Microbiology, antioxidant, and antibacterial activity of sinom kombucha Zubaidah, Elok; Dewi, Camelia Norosita; Yua, Ezza Selisa; Putri, Nazhifah Vitya
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 7, No 1 (2024)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2024.007.01.6

Abstract

Kombucha is a traditional drink made from a fermented sweet tea with a mixed culture known as a symbiotic culture of bacteria and yeast (or SCOBY). Although kombucha is usually made from black tea, nowadays, kombucha can be made in various variations such as sinom beverages. Sinom is a traditional Indonesian herbal drink originating from young tamarind leaves or sinom. In addition to tamarind leaves, sinom includes other ingredients such as sugar and turmeric. Turmeric contains curcumin, which is beneficial for health because it has the ability as an antioxidant, anti-inflammatory, antitumor, and lowering blood fat or cholesterol levels. Tamarind leaves contain chemical compounds of flavonoids, phenols, terpenoids, steroids/triterpenoids and are included in the group of plant extracts with antioxidant activity. These chemical compounds can be increased through the kombucha fermentation process. The concentration of turmeric rhizome  used in kombucha was 0.8% (w/v), while the tamarind leaves used were 0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1% (w/v). Sinom kombucha fermented for 7 days. The analysis performed included total microbes, total lactic acid bacteria (LAB), pH, total sugar, total phenol, antioxidant activity, and antibacterial activity against S. aureus and E. Coli growth. The fermentation process and various tamarind leaf concentrations have significant effects in total microbes, total LAB, total sugar, total phenol, IC50. The antibacterial activity is affected by fermentation but not by the variations in tamarind leaf concentrations. The best tamarind leaves concentration of kombucha sinom beverages was at 0.6%, which has a pH value of 3.81, total sugar content of 7,58%, and total phenol content of 240.9 µg GAE/mL, IC50 value of 159.84 ppm, total microbial count 3.37 x 107 CFU/mL, total LAB of 4.63 x 105, antibacterial activity against E. coli of 3.1 mm, and antibacterial activity against S. aureus of 3.27 mm.
Training on Bioconversion of Coffee Pulp Waste into Vegan Leather Raw Material in Dusun Krajan, Tegalharjo, Glenmore, Kabupaten Banyuwangi Ardyati, Tri; Mora, Giral Baines; Permatasari, Dewi; Maulidiyah, Nuris Shobah; Wahyudi, Aleyda Nur Halizah; Srihardyastutie, Arie; Poerwadi, Bambang; Zubaidah, Elok
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 11 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i11.9473

Abstract

Banyuwangi is the largest coffee plantation centre in East Java, with robusta and arabica coffee production reaching 10,518 tonnes per year. Coffee plantation waste, which is abundant, is known as coffee pulp. Coffee pulps can be converted into organic compost/fertilizer, animal feed, and eco-friendly products such as cellulose-based nata/membrane. The abundant availability of coffee pulp waste in Banyuwangi Regency has not been correctly handled or processed to prevent environmental impact. Converting coffee pulp waste into eco-friendly products will benefit the surrounding community and increase the added value of the waste. To overcome these problems, it is necessary to engage in activities involving the local community, local government, and agro-tourism actors through counseling and training on processing coffee pulp waste/bioconversion into eco-friendly products, thereby benefiting the community in Banyuwangi Regency, especially in the Glenmore area. Training participants were given a questionnaire for assessment. Based on the results of the questionnaire analysis, it is known that the participants' understanding before the activity is: 40% of participants were very poorly understood, 13% were poorly understood, 20% were quite understood, 13% understood, and 13% were very familiar with the material of processing coffee pulp waste. After receiving training, 27% of participants achieved an excellent understanding, 33% had a moderate understanding, and 33% had a somewhat understanding. Additionally, there were still participants who did not understand as much as 7%. Based on the participants' assessment, 67% felt that the benefits of this activity were excellent and should be carried out on an ongoing basis.
Gen Z sensory perspective on turmeric-based jamu transformed into kombucha through convolutional neural network approach Fibrianto, Kiki; Zubaidah, Elok; Bimo, Igoy; Miftachurrochmah, Anis; Safindra, Naswadhia; Putri, Belvania Nabila
jurnal1 VOLUME 8 ISSUE 2, DECEMBER 2025
Publisher : Hasanuddin University Food Science and Technology Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/canrea.v8i2.1272

Abstract

Jamu, an Indonesian traditional herbal drink, is widely consumed for health maintenance but is often perceived as bitter, pungent, and outdated by younger generations. To preserve this cultural heritage, transforming jamu into kombucha offers both improved sensory appeal and functional benefits. This study examined the characteristics and sensory perception of kombucha made from turmeric and a mix of turmeric–tamarind leaves, evaluated at serving temperatures of 25°C and 9°C. Sensory evaluation employed Rate-All-That-Apply (RATA) and Temporal Dominance of Sensations (TDS), validated using Facial Emotion Recognition (FER) and Facial Landmarks Distance (FLD) analyses via a Convolutional Neural Network (CNN). Results showed that, despite pungent or bitter notes, sourness was the dominant attribute across samples (p < 0.05). Sourness was perceived for a longer duration in kombucha served at 9°C compared to 25°C. Although GC–MS detected bitterness, it did not significantly affect preference (p > 0.05). FER results were dominated by positive expressions (p < 0.05), confirming overall acceptance, while FLD analysis revealed significant changes in five facial landmarks associated with positive emotions. Male participants exhibited more positive expressions than females (p < 0.05). These findings suggest that converting jamu into kombucha effectively enhances its palatability and emotional acceptance, making it a promising strategy to modernize traditional beverages. Jamu based kombucha can thus serve as a culturally rooted, functional drink suitable for Gen Z consumers and adaptable to various serving temperatures.
Co-Authors - Austin, - Aan Muzaky Kusuma Abdul Jabar Jordana Kalfat Abdul Jabar Jordana Kalfat Abdullah Nasich Ulwan Abdullah Nasich Ulwan, Abdullah Nasich Aji Sutrisno Alfredo Johan Wahyu Sagita Sitompul Ali Mashuri Alinna Listyani Alinna Listyani Ampu Marojahan Resmanto Ampu Marojahan Resmanto, Ampu Marojahan Anang Lastriyanto Andayani, Dian Wuri Anindita Mufti Rizky Anindita Mufti Rizky Anton Nudyanto Anton Nudyanto Arie Srihardyastutie Arni Ardila Sari Bambang Poerwadi Bimo, Igoy Chatarina Umbul Wahyuni Christina Veronica Christine Natalia Halim Christine Natalia Halim Citra Pradani P Daniar Putri Dinson Daniar Putri Dinson Denty Wiryawan, Alivianisa Carissa Detya Pitaloka Sari Devrina Nova Maria Devrina Nova Maria Dewi Maya Maharani Dewi Permatasari, Dewi Dewi, Camelia Norosita Dian Widya Ningtyas Diyah Dewanti, Beauty Suestining Duwi Wistiana Duwi Wistiana Ella Saparianti Elvina Wulandari Elvina Wulandari Erryana Martati Estri Laras Arumingtyas Evan Tedjautama Evan Tedjautama Fadhila Erwin Fadhila Erwin Falasifah, Ratu Felix Deni Arentino Feronika Heppy Sriherfyna Fithri Choirun Nisa Gilang Satrio Wicaksono Hairil Fikri hardiansyah, bagus Hartono, Elvianto Dwi Hasfiani, Yuliatin Hasna, Tanalyna Heliana, Almaria Heni Adhianata, Heni Hidayat Sujuti Ilham Dwi Nurcahyono Ilham Dwi Nurcahyono Indria Purwantiningrum Indria Purwantiningrum Irfi Wahyuningrum Irfi Wahyuningrum Jamhari Jamhari Jaya Mahar Maligan Joni Kusnadi Josep Hindrawan KIKI FIBRIANTO Kristian Purwohadisantoso Lalong, Paulus Risan F. Lila Prastyaharasti Lila Prastyaharasti M Fatkhul Mubin M Fatkhul Mubin M. Maria Marrisa Mawardhani Masahid, Ardiyan Dwi Maulidiyah, Nuris Shobah Mentari Sekar Arum Miftachurrochmah, Anis Mochamad Nurcholis Monika Maria P.S. Mora, Giral Baines Muhammad Muizuddin Muhammad Muizuddin Munawaroh - Munawaroh Munawaroh Musdholifah Musdholifah Musdholifah Musdholifah N. Sholahudin Nadzira Nadzira Nadzira Nadzira, Nadzira Nawa Aldina Nela Endy Restiengtias Nestya Hariyoko Nina Marlina A Nur Ida Panca Nugrahini Nur Kusmiyati Nur, Mokhamad Pendik Setiawan Pino Tri Anggara Pino Tri Anggara Prasis Nursyam Suhardini Prasis Nursyam Suhardini Putri, Aldila Putri, Belvania Nabila Putri, Nazhifah Vitya Putu Ayu Chintia Devi Pendit Putu Ayu Chintia Devi Pendit, Putu Ayu Chintia Devi Putu Bayu Tantrayana Putu Bayu Tantrayana Raehana Saria Gahari Rahmawati, Siti Irma Ratih Anggraini Ratih Anggraini, Ratih Rebecca Oktanesia Riyanto, Eko Isro Rochmad Chusaini Maulidianto Rochmad Chusaini Maulidianto Rosyid Ulul Albab Rosyid Ulul Albab Safindra, Naswadhia Salafy, Rahma Aulia Sanita Friska Sitepu Septina Dwi Widiyana SIMON BAMBANG WIDJANARKO Soviandini Dwiki Kartikaputri Sudarma Dita Wijayanti Tri Ardyati Tri Ardyati Vicka Jacinda Masye Kusuma Vicka Jacinda Masye Kusuma Vindhya Tri Widayanti, Vindhya Tri Wahyudi, Aleyda Nur Halizah Wellang, Ambo Weni Liandani Weni Liandani Widya Dwi Rukmi Putri Yogi Trio Sandi Yogi Trio Sandi Yua, Ezza Selisa Yusfardyanto Yunus Yusfardyanto Yunus Yusnita Liasari Yusry Muqit Suryawira Yusuf Hendrawan Zia Rossanieldha Zia Rossanieldha