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All Journal PENA SAINS Science and Technology Indonesia Jurnal Gizi dan Dietetik Indonesia (Indonesian Journal of Nutrition and Dietetics) Jurnal Kimia Terapan Indonesia Fullerene Journal of Chemistry Stannum : Jurnal Sains dan Terapan Kimia Jurnal Sains Indonesia INPHARNMED Journal (Indonesian Pharmacy and Natural Medicine Journal) AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Bangun Desa : Jurnal Pengabdian Masyarakat Journal of Pharmaceutical and Sciences.
Muhammad Abdurrahman Munir
Universitas Alma Alta
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : pena sains

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DETERMINATION OF ASCORBIC ACID CONCENTRATION IN MYRTACEAE USING THE IODOMETRIC TITRATION METHOD Nur Syafitri; Muhammad Abdurrahman Munir; Veriani Aprilia; Emelda Emelda
JURNAL PENA SAINS Vol 10, No 1 (2023): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v10i1.19161

Abstract

Vitamins are essential compounds in food even though the content contained in these foods is small, and this is because vitamins have a vital role in the human body. Vitamin C or ascorbic acid is a secondary antioxidant compound that captures free radical compounds. Vitamin C content is easily found in vegetables and fruits. One of the fruits that contain vitamin C is guava. This study aims to determine and analyze vitamin C concentrations in several guava fruit types with the iodometric titration method. This type of research is a quantitative-qualitative experimental laboratory. The samples used in this study were guava in Myrtaceae family consisting of red guava (Psidium guajava L.), crystal guava (Psidium guajava L.), and red water guava (Syzygium aqueum). The study began with making 0.05 N iodine, iodine formation, then the 3% amylum indicators. The average sample content of red guava, crystal guava, and red water guava was 2.42 mg/100 grams. To conclude, the ascorbic acid concentration of red guava water is higher at 157 mg/100 g compared to the other two guavas, which are 80 mg/100 g and 87 mg/100 g.
DETERMINATION OF VITAMIN C IN SPINACH (Amaranthus sp.) USING TITRATION METHOD Allefeti Sandrika; Muhammad Abdurrahman Munir; Veriani Aprilia; Emelda Emelda
JURNAL PENA SAINS Vol 10, No 2 (2023): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v10i2.19172

Abstract

Vitamin C is a compound that is included in the group of water-soluble vitamins. The human body really needs vitamin C intake because it can act as an antioxidant which is closely related to collagen formation and iron absorption. Vitamin C is an organic compound that the human body needs in small amounts to maintain the body metabolic functions. Vitamin C is also one of the most important vitamins in increasing the body immunity This compound is very easy to find in fruits and vegetables, one of which is spinach. Spinach is a vegetable which generally contain vitamin C with an average of 158.54 mg/100 g. The research aims to analyze vitamin C levels in spinach using a titration method or also known as iodometric titration. This research method is included in an experimental study. The sample used in this research was obtained from Kotagede Market, Yogyakarta. The titration results for each spinach will be analyzed using Microsoft Excel, where the results have shown that the levels of vitamin C contained in snapper spinach (18.95 mg/100 g), picked spinach (46.39 mg/100 g), thorn spinach (14.52 mg /100 g) and red spinach (15.42 mg/100 g). Therefore, it can be concluded that this titration method can be used to accurately measure the vitamin C content in spinach. The iodometric titration method was chosen to analyze vitamin C levels because this application is very simple when compared to other methods. Ascorbic acid or vitamin C is known as a strong reducing agent and can simply be titrated using iodine solution.
Co-Authors Aldilla Sari Utami Alfiana Deviana Alfiatul Azizah Allefeti Sandrika Amanda, Ristia Laura Annisa Fatmawati Audia N Rumbaremata Azizah, Abibatul Badri, Khairiah Haji Badrul, Ahlam Inayatullah Badrul, Hamid Alkhair Bilqis Ardaffa Zulfa Nabila Cahya Retna Ningtyas Chairunisa Ta Marsaoly Deni Ismail Depita Sucianingsih Deviana, Alfiana Emelda Emelda Emelda Emelda emelda, emelda Emelda, Emelda Fatma Meiriani Fatmawati, Annisa Febranti, Fera Erika Fera Erika Febranti Fina Faradina Drakel Hamid Alkhair Badrul Icha Trisnawati Iin Nur Rahayu Ika Amalia Putri Inayatullah, Ahlam Ira Gusti Riani Ismawati, Nunung Joni Yoga Pratama Juliana, Intan Khairiah Haji Badri Khoirunnas Darojatun Ahmad Kurnia Miyono Kusumawardani, Nurul Lee Yook Heng Lee Yook Heng, Lee Yook Mardatilla Rusli Saleh Jafar Marsaoly, Chairunisa Ta Nailus Syafa’ah Nia Boru Ritonga Ningtyas, Cahya Retna Nunung Ismawati Nur Hidayati Nur Hidayati Nur Syafitri Nurhidayanti Nurhidayanti Nurhidayanti, Nurhidayanti Nuryanti, Sundari Desi Pothitirat, Werayut Pothitirat, Werayut Pratama, Joni Yoga Pratiwi, Sindi Pratiwi, Sindi Putri Sumiati Putri, Ika Amalia Rachmad bagas yahya supriyono Rafidah Nur Aini Rahmawati, Feti Riko Dwi Martindo Rio Gusraya Unaldi Risma Sindi Antika Sari Ristia Laura Amanda Rizal Fauzi Rumbaremata, Audia N Safridjal Nara Pratama Sa’adah, Siti Miftahus Selly Utami Sholihah, Yuanita Siti Miftahus Sa’adah Sundari Desi Nuryanti supriyono, Rachmad Bagas Yahya Supriyono, Yahya Syafa’ah, Nailus Tiaz Safitri Triyanti M Imam Veriani Aprilia Veriani Aprilia Wahyu Yuliana Solikah Yahya Supriyono Yessi Lestari Yuanita Sholihah