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KARAKTERISTIK KIMIA TEH DAUN JAMBU AIR AKIBAT PERLAKUAN OKSIDASI DAN NON-OKSIDASI DENGAN PERBEDAAN METODE PENGERINGAN Khaqiqi, Taib; Hasbullah, Umar Hafidz Asy’ari; Ujianti, Rizky Muliani Dwi; Nurdyansyah, Fafa; Umiyati, Rini; Maligan, Jaya Mahar
Jurnal Pangan dan Agroindustri Vol. 12 No. 3: July 2024
Publisher : Department of Food Science and Biotechnology, Faculty of Agriculture Technology, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpa.2024.012.03.4

Produk teh dapat dibuat dari bahan non teh seperti daun jambu air. Tujuan dari penelitian ini yaitu untuk mempelajari sifat kimia teh daun jambu biji delima melalui perlakuan non-oksidasi dan oksidasi enzimatik menggunakan berbagai teknik pengeringan seperti pengering kabinet, oven, dan sangrai. Metodologi penelitian yang digunakan dalam penelitian ini yaitu desain Rancangan Acak Lengkap (RAL) Faktorial dengan 2 faktor. Faktor pertama adalah metode pengeringan dengan Pengering kabinet, oven dan Sangrai dengan kwali dari tanah. Faktor kedua adalah dengan oksidasi enzimatis dan non-oksidasi. Hasil penelitian menunjukkan bahwa perlakuan non-oksidasi enzimatis dengan metode pengering oven memberikan pengaruh hasil tertinggi teh daun jambu air delima pada sifat kimia meliputi kadar abu (5.70%), pH (4.61). Selanjutnya, perlakuan non-oksidasi enzimatis dengan metode pengering pengering kabinet memberikan hasil tertinggi teh daun jambu air delima pada sifat dan kimia meliputi kadar air (10.44%), kadar tannin (13.74%), dan total fenol (186.97 mg GAE/gr).

Physicochemical Characteristics of Jelly Candy Cinnamon Powder Koerintji Variation of Red Seaweed Carrageenan Concentration Setiawan, Erwin; Ujianti, Rizky Muliani Dwi; Muflihati, Iffah; Affandi, Arief Rakhman
Biology, Medicine, & Natural Product Chemistry Vol 13, No 2 (2024)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2024.132.415-421

Jelly candy is a product that has the characteristics of being chewy and varied in texture. Carrageenan, an alternative natural raw material as a gelling agent in jelly candy, is one of the producers of red seaweed carrageenan because it has a very complex composition. Cinnamon contains about 91.88-94.19% cinnamaldehyde as an antioxidant compound. The study aimed to determine the value of the antioxidant activity obtained and the correlation between the cinnamon powder jelly candy Koerintji variety and the addition of red seaweed carrageenan with different concentration variations. The study was conducted using a completely randomized design with two factors. Carrageenan concentrations consist of 3.5% and 5%. The results showed that the concentration of red seaweed carrageenan significantly affected the antioxidant activity value and characteristics of cinnamon jelly candy. The best treatment was obtained at a concentration of 1.5% cinnamon and 5% red seaweed carrageenan with chemical characteristics water content 11.49%, antioxidant activity 50.26%, pH value 4.82%, physical characteristics colour (brightness) 40.72%, texture hardness 2.3%, adhesiveness 3.1%, elasticity 2.76%, colour preference 4.66%, aroma preference, 4.32%, flavour preference 4.66%, elasticity texture preference 4.56%, taste 4.80%, and overall 4.04%.

Formulasi Tablet Effervescent Ekstrak Bunga Rosella (Hibiscus Sabdariffa L.) Menggunakan Gula Batu dan Penambahan Vitamin C Umiyati, Rini; Prabowo, Azis; Affandi, Arief Rakhman; Ujianti, Rizky Muliani Dwi
Jurnal Ilmu-Ilmu Pertanian Vol. 31 No. 2 (2024): Jurnal Ilmu Ilmu Pertanian Desember
Publisher : Politeknik Pembangunan Pertanian Yogyakarta-Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55259/jiip.v31i2.49

Keadaan pandemi covid-19 saat ini, menuntut masyarakat untuk selalu menerapkan gaya hidup sehat. Salah satu bentuk gaya hidup sehat adalah dengan sering mengkonsumsi buah, sayur dan bunga yang mengandung antioksidan untuk memperkuat sistem imun tubuh. Rosella merupakan salah satu tanaman yang memiliki antioksidan tinggi untuk meningkatkan kekebalan tubuh dan juga sebagai obat herbal. Rosella biasanya hanya dibuat menjadi teh, dapat diubah menjadi sediaan dalam bentuk tablet effervescent dengan keunggulan yang lebih praktis. Penelitian ini bertujuan untuk mengetahui karakteristik tablet effervescent yang menggunakan ekstrak bunga rosella dengan penambahan vitamin C yang berbeda dan untuk mengetahui perubahan karakteristik effervescent yang paling baik menggunakan penambahan vitamin C. Desain penelitian dilakukan dengan 2 faktor perlakuan yaitu konsentrasi vitamin C (100 dan 150 mg) dan konsentrasi bubuk rosella (2½, 3, dan 3½ g). Hasil penelitian menunjukkan bahwa laju larutan tablet effervescent pada semua perlakuan tidak berbeda nyata dengan waktu tercepat yaitu 2,24 menit/g. Hasil analisis pH tidak berbeda nyata dengan nilai 4,50-5,03. Hasil uji warna menunjukkan bahwa warna tablet dan larutan dipengaruhi oleh penambahan konsentrasi vitamin C dan serbuk ekstrak rosella. Hasil analisis uji kadar air menunjukan bahwa penambahan 100 mg vitamin C serta penambahan ekstrak bubuk rosella 3 dan 3½ g mengalami peningkatan. Hasil analisis aktivitas antioksidan produk tablet effervescent konsentrasi bubuk rosella.

PEMBUATAN MINUMAN PROBIOTIK DAUN JAMBU BIJI (Psidium guajava L.) DENGAN BAKTERI ASAM LAKTAT Oktaria, Taskiya Sindy; Nofitasari, Shindi; Susanti, Alifah Dwi; Muflihati, Iffah; Suhendriani, Sari; Umiyati, Rini; Ujianti, Rizky Muliani Dwi; Nurdyansyah, Fafa; Affandi, Arief Rakhman
Biosel Biology Science and Education Vol. 14 No. 1 (2025): BIOSEL (Biology Science and Education: Jurnal Penelitian Sains dan Pendidikan)
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33477/bs.v14i1.8421

Probiotic drinks contain a number of live bacteria that are beneficial for maintaining the natural microflora of the human digestive tract in a balanced state. Guava plants are plants that have the potential to be used as functional foods, one of which is probiotic drinks. The purpose of this study was to determine the characteristics of probiotic drinks with treatments, namely different types of guava leaves and different cultures of lactic acid bacteria used. The experimental design used is a completely randomized design (CRD) with 2 treatments, namely differences in the type of guava leaves and LAB used. The pH analysis results showed that white guava with Lactobacillus acidophillus culture had the most acidic pH. The test results of red guava with Lactobacillus casei culture get the lowest value of total soluble solids and the brightest color. The highest viscosity is white guava with Lactobacillus casei culture. Descriptive tests of all attributes were not significantly different except for the sour taste attribute. Hedonic test showed that panelists disliked probiotic drinks with Lactobacillus casei culture. Keywords: Probiotics Drink, Guava Leaf, Leaf Type, Lactobacillus casei, Lactobacillus acidophillus

Analysis of water quality in watershed using heavy metal pollution index Ujianti, Rizky Muliani Dwi; Novita, Mega; Burhanuddin, Aan; Muflihati, Iffah; Agung, Lukman Anugrah; Ingsan, Roies Nur; Wafa, Alfan Najihil; Anggraeni, Cerly Nurlita; Muzakki, Tsaqif
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35680

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders.Keywords:Water QualityHeavy MetalCoastalWatershed

Analysis of water quality in watershed using heavy metal pollution index Ujianti, Rizky Muliani Dwi; Novita, Mega; Burhanuddin, Aan; Muflihati, Iffah; Agung, Lukman Anugrah; Ingsan, Roies Nur; Wafa, Alfan Najihil; Anggraeni, Cerly Nurlita; Muzakki, Tsaqif
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35680

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders.Keywords:Water QualityHeavy MetalCoastalWatershed

Effect of Modified Kimpul Flour Substitution and Glycerol Monostearate Concentration on The Physicochemical and Sensory Properties of Sweet Bread Setianingsih, Siti Nurlaela; Ujianti, Rizky Muliani Dwi; Muflihati, Iffah; Nurdyansyah, Fafa; Novita, Mega; Paramita, Diva Julia; Nofitasari, Shindi; Anggarini, Dola Mareta; Annajah, Abdillah Fathan Generus
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.679-683

Wheat flour is the primary ingredient in sweet bread production, yet its import-dependent supply in countries like Indonesia prompts the need for alternative local ingredients. Kimpul tuber (Xanthosoma sagittifolium), rich in carbohydrates, presents a promising substitute, though its native starch properties are less suitable for baking. This study aimed to evaluate the effect of substituting wheat flour with heat moisture treatment (HMT)-modified kimpul flour and the addition of glycerol monostearate (GMS) on the physicochemical and sensory properties of sweet bread. A factorial completely randomized design was applied using three wheat-to-kimpul flour ratios (3:1, 1:1, and 1:3) and three GMS concentrations (2%, 3%, and 4%). Results showed that higher kimpul flour substitution increased moisture and carbohydrate content but reduced protein and fat levels. Textural properties such as hardness and adhesiveness also increased with kimpul content, but these were mitigated by the addition of GMS, particularly at 3%. The optimal formulation 1:1 wheat-to-kimpul ratio with 3% GMS produced sweet bread with the best overall sensory acceptance. The findings suggest that HMT-modified kimpul flour combined with GMS can serve as a functional and acceptable alternative to wheat flour in bread production. This supports food diversification strategies and promotes the utilization of local tuber-based flours in bakery applications.

Interaksi Hidrokoloid dan Garam Terhadap Karakteristik Organoleptik Salty Cookie Bebas Gluten Substitusi Tepung Sukun dan Tepung Maizena Hidayah, Isti Nurul; Ferdiansyah, M. Khoiron; Ujianti, Rizky Muliani Dwi
Jurnal Ilmu Pangan dan Hasil Pertanian Vol 5, No 2 (2021)
Publisher : Program Studi Teknologi Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jiphp.v5i2.8596

Breadfruit flour (Artocarpus communis) is a gluten-free flour which is good to be used as an alternative in making cookies for people with gluten intolerance. The processing of non-gluten cookies has a weakness because there is no function of gluten so that a substitute is needed to improve the properties of cookies with hydrocolloids. Hydrocolloid can form elasticity and compactness well if salt is added. This study aims to determine the interaction of adding hydrocolloid and salt to the sensory properties of gluten-free cookies. The study used a completely randomized design with 2 factorials. The first factor is the type of hydrocolloid (Guar Gum and Xanthan Gum). The second factor is the type of salt (NaCl and CaCl2). The results showed the best treatment on guar gum and NaCl treatment. The addition of hydrocolloid and salt showed (p0,05) and Ho was accepted, so there was no difference in interaction in determining the sensory properties of salty cookies with the parameters of breadfruit aroma, savory taste, salty taste, crunchiness, and brown color.

Growth Performance of Daphnia sp. Cultured in Different Concentration of Rice Washing Water Agung, Lukman Anugrah; Herjayanto, Muh.; Solahudin, Edo Ahmad; Ujianti, Rizky Muliani Dwi
Advance Sustainable Science, Engineering and Technology Vol 2, No 2 (2020): May-October
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v2i2.6439

Abstract. This study aimed to investigate the effect of the administration of rice washing water in culture medium on the growth performance of Daphnia sp. This research using three different doses of rice washing water i.e 1 mL/L, 3mL/L, and 5 mL/L. Daphnia sp. was cultured with an initial density of 20 ind/L. Observed parameters include growth parameters (population density, size and specific growth rate) and water quality. This result showed that a concentration of 3 mL/L created the highest population of Daphnia sp. density about 620Â±20 ind/L, number small size (young stage) 81.2%, and the highest specific growth rate about 56.68Â±0.55%. The water quality content ofÂ DO, temperature and pH during this study were in the good range of Daphnia sp. life and reproduction. The research has a conclusion that rice washing water can be used to nutritional sources of Daphnia sp. In the future, it is necessary to make further observations about the reproductive performance of Daphnia sp, given rice washing water through clone culture.Keywords: Live food, Population density, Rice washing water, Size of Daphnia sp., Specific growth rate

Analysis of Water Quality and River Waters Microbology for Manifestation of Food Safety Ujianti, Rizky Muliani Dwi; Androva, Althesa
Advance Sustainable Science, Engineering and Technology Vol 1, No 1 (2019): May-October
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v1i1.4877

Â Abstract. Banjir Kanal Barat is a river in the Garang watershed, Semarang City, Central Java, Indonesia. Its function is as a source of water for the community. The level of pollution in this river is already high. The purpose of this study is to provide advice to governments, communities and related stakeholders to realize integrated river management, and fisheries-based food security is achieved. This research method is: analyzing the water quality of the Banjir Kanal Barat river, and analyzing the amount of faecal and total coliform bacteria content in the Banjir Kanal Barat river, and analyzing how to overcome the decline in the quality of waters of the Banjir Kanal Barat river due to faecal and total coliform bacteria pollution. The results showed that the water quality at the research location was still in the quality standard. The content of coliform dan faecal bacteria at the study site exceeds the quality standard, this is due to the influence of domestic waste from households. The thing that needs to be done is counseling the existence of a clean and healthy life, especially for people who are still throwing domestic waste into the river. The existence of water purification equipment is also very necessary to overcome this problem. Water quality management can be done with policy analysis. Regulations related to water quality management can be analyzed and then given solutions and recommendations related to these rules so that policies can be taken that are sustainable, integrated, and coordinated between various parties in managing river water quality and food security.Â Keywords: food security, water quality, river, faecal coliform, total coliform

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