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All Journal Caraka Tani: Journal of Sustainable Agriculture Indonesian Food Science and TechnologyJournal FaST : Jurnal Sains dan Teknologi Jurnal Ilmiah Mandala Education (JIME) Jurnal Farmasi dan Sains Indonesia (JFSI) Gemakes: Jurnal Pengabdian Kepada Masyarakat Media Farmasi Indonesia Jurnal Audit dan Perpajakan
Rosa, Dela
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KARAKTERISTIK FISIKOKIMIA TEH HITAM HERBAL DAUN JAMBU BIJI YANG DITAMBAHKAN DENGAN SARI JERUK NIPIS DAN Eucalyptus globulus [PHYSICOCHEMICAL CHARACTERISTICS OF GUAVA LEAF HERBAL TEA WITH ADDED LIME JUICE AND Eucalyptus globulus] Halim, Yuniwaty; Evelyn, Fellia; Rosa, Dela
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 5 No. 1 (2021): NOVEMBER
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Guava leaves can be utilized as herbal tea because it contains bioactive compounds. In this research, guava leaf herbal tea was prepared according to black tea making process. Guava leaf herbal tea tends to have an astringent taste, therefore lime juice and Eucalyptus globulus were added to improve the sensory characteristics. The purpose of this study was to determine the best brewing temperature and time, and the effect of lime juice concentration and E. globulus essential oil on physicochemical and sensory properties of guava leaf herbal tea. In the first stage research, guava leaf herbal tea was brewed at different temperature (70, 80, 90oC) and time (5, 10, 15 minutes). The selected brewing temperature and time was 90oC for 10 minutes, with antioxidant activity (IC50) of 4372.22±54.71 ppm, total phenolic of 292.88±8.35 mg GAE/L, total flavonoids of 80.83±1.61 mg QE/L, and condensed tannin of 543.10 ±38.68 mg CE/L. In the second research stage, guava leaf herbal tea was prepared with the addition of lime (1, 2, 3%) and E. globulus (0,05, 0,10, 0,15%). When compared to herbal teas without the addition of lime and E. globulus, guava leaf herbal tea with addition of 3% lime and 0,15% E. globulus has lower antioxidant activity (IC50) of 10199.18±289.35 ppm, total phenolic of 303.12±19.70 mg GAE/L, total flavonoids of 78.20±3.52 mg QE/L, and condensed tannins of 362.40±12.40 mg CE/L. However, addition of lime and E. globulus to the guava leaf herbal tea increased the panelists' preference in terms of color and astringency.BAHASA INDONESIA ABSTRAK:Daun jambu biji dapat dimanfaatkan menjadi teh herbal dikarenakan memiliki kandungan senyawa bioaktif. Pembuatan teh herbal daun jambu biji pada penelitian ini menggunakan proses pembuatan teh hitam. Teh herbal daun jambu biji cenderung memiliki rasa sepat sehingga ditambahkan sari jeruk nipis dan Eucalyptus globulus untuk meningkatkan karakteristik sensorinya. Tujuan dari penelitian ini adalah menentukan perlakuan suhu dan waktu penyeduhan terpilih, serta pengaruh penambahan konsentrasi sari jeruk nipis dan minyak esensial E. globulus terhadap karakteristik fisikokimia serta sensori teh herbal daun jambu biji. Penelitian tahap I dilakukan pembuatan daun teh jambu biji kering dan penyeduhan teh herbal daun jambu biji pada suhu (70, 80, 90oC) dan waktu penyeduhan (5, 10, 15 menit). Suhu dan waktu penyeduhan terpilih adalah suhu 90oC selama 10 menit, yang memiliki aktivitas antioksidan (IC50) sebesar 4372,22±54,71 ppm, total fenolik 292,88±8,35 mg GAE/L, total flavonoid 80,83±1,61 mg QE/L, dan kandungan tanin terkondensasi 543,10±38,68 mg CE/L. Pada penelitian tahap II, dilakukan pembuatan teh herbal daun jambu biji dengan penambahan konsentrasi jeruk nipis (1, 2, 3%) dan E. globulus (0,05, 0,10, 0,15%). Jika dibandingkan dengan teh herbal tanpa penambahan E. globulus dan jeruk nipis, teh herbal daun jambu biji dengan penambahan jeruk nipis 3% dan E. globulus 0,15% memiliki aktivitas antioksidan (IC50) yang lebih rendah, yaitu sebesar 10199,18±289,35 ppm, total fenolik 303,12±19,70 mg GAE/L, total flavonoid 78,20±3,52 mg QE/L, dan kandungan tanin terkondensasi 362,40±12,40 mg CE/L. Namun, penambahan jeruk nipis dan E. globulus pada teh herbal daun jambu biji meningkatkan tingkat kesukaan panelis terhadap warna dan rasa sepat.  
Development of Clove (Syzygium aromaticum) and Cinnamon (Cinnamomum burmannii) Based Food Sanitizer Kam, Natania; Joanina, Mikaela; Hardoko, Hardoko; Rosa, Dela; Halim, Jeremia Manuel
Caraka Tani: Journal of Sustainable Agriculture Vol 38, No 1 (2023): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v38i1.61864

Abstract

Although minimally processed food contains more beneficial nutrients, it is one of the largest sources of food-borne diseases. Therefore, this research aims to develop the efficiency of food sanitizer, targeted toward fresh food products using a green chemistry approach. The cinnamon and clove were extracted using water distillation and ethanol extraction with the green technique. The extracts were characterized for antimicrobial activity and incorporated into basic food sanitizer formulation. The solution's color and stability were evaluated and the sanitizer was applied to decontaminate fresh strawberries. The total microbial load before and after the application was also compared to determine the effectiveness of the food sanitizer. Based on the results, all the extracts showed high effectiveness in inhibiting various spoilage microorganisms that exist in food produced with water distillation. The extracts also showed better ability when incorporated into a water-based sanitizer. All the developed food sanitizers can reduce the microbial load of the fresh produce by 4 log per 5 minutes of contact time. Meanwhile, the water-distilled clove extract showed the most effectiveness, decreasing microbial log by 3.93±0.07 log CFU g-1 of bacteria load and 4.37±0.14 log CFU g-1 of mold load, respectively which performed good dispersion stability for approximately 10 days of observation. This indicated that food sanitizer using water-distilled clove extract could be applied as a good alternative to chemical-based sanitizer.
Co-Authors Arafi, Andika Razzak Asgara, Eqy Yudha Ayuningtyas, Nurista Dida Deis, Friska Elleanore, Angeline Ernestine Arianditha Pranasti, Ernestine Arianditha Evelyn, Fellia Halim, Yuniwaty Hardoko Hardoko Hartanti, Yesiska Kristina Haryanto, Felicia Karyn Jeremia Manuel Halim Jesica, Imelda Angie Joanina, Mikaela Kam, Natania Maharani, Yunita Intan Mailinda, Putri Maman Suryaman Pramitaningastuti, Anastasia Setyopuspito Ratna Handayani Ratnasari, Irani Rianto, Muhammad Richo Romaito, Rachel Beatrix Setiadi, Jacinta Fanya Surya, Anne Tjoa, Stefany Indah Pricilia