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Momuat, Lidya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Immunology & microbiology Mathematics Medicine & Pharmacology

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 1 
TOTAL ANTIOKSIDAN DARI BEBERAPA JENIS SAYURAN TINUTUAN YANG DITANAM DI DAERAH BERBEDA KETINGGIAN Momuat, Lidya; Fatimah, Feti; Wehantouw, Frenly; Mamondol, Oktavianus
CHEMISTRY PROGRESS Vol 4, No 1 (2011)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.4.1.2011.26499

Abstract

ABSTRACTMomuat et al., 2011. Total antioxidant of some Tinutuan vegetables planted in different altitude places.A research was done to to study the effect of altitude on total antioxidant some tinutuan vegetables. Totalantioxidant of some vegetables was evaluated using ferric reducing antioxidant plasma method. The resultsshow that vegetables treat by heating possessed high antioxidant activity. Total antioxidant of gedi, spinach,kangkung and kemangi from Tomohon were 0.02, 1.37, 0.06 and 0.08, respectively. Total antioxidant of gedi,spinach, kangkung and kemangi from Manado were 0.36, 1.84, 0.30 and 0.58, respectively. High totalantioxidant activity of vegetables from Manado caused by Manado land contain more minerals to support plantgrowth and metabolism.Keywords : altitude, vegetables, tinutuan, total antioxidant
POTENSI ANTIOKSIDAN DAN FOTOPROTEKTIF TEPUNG KOMPOSIT DARI PISANG GOROHO, JAGUNG MANADO KUNING DAN SAGU BARUK Suryanto, Edi; Momuat, Lidya
CHEMISTRY PROGRESS Vol 10, No 2 (2017)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.10.2.2017.27749

Abstract

ABSTRAK Pisang, jagung dan sagu merupakan sumber makronutrien, vitamin, mineral, serat pangan dan fitokimia. Tujuan penelitian adalah untuk menentukan aktivitas antioksidan dan fotoprotektif tepung komposit dari pisang goroho, jagung manado kuning dan sagu baruk menggunakan perbedaan pelarut. Tepung komposit diproduksi menggunakan campuran tepung pisang, jagung dan sagu pada perbandingan 60:30:10. Tepung komposit dievaluasi menggunakan kandungan total flavonoid (metode aluminium), aktivitas antioksidan (uji radikal 1,1-diphenyl-2-phycrylhidrazyl) dan aktivitas fotoprotektif (uji SPF menggunakan spektrofotometer). Hasil penelitian ini menunjukkan bahwa kandungan total flavonoid tertinggi ditemukan pada pelarut aseton dibandingkan dengan methanol, ethanol, petroleum eter dan TPTJ (kontrol) pada tepung komposit. Aktivitas penangkal radikal bebas ekstrak aseton tepung komposit menunjukkan aktivitas paling tinggi daripada ekstrak etanol, metanol, petroleum eter dan TPTJ (kontrol). Hasil penelitian ini juga menunjukkan bahwa ekstrak aseton mempunyai aktivitas fotoprotektif paling tinggi daripada ekstrak metanol, etanol, petroleum eter dan TPTJ (kontrol) pada nilai SPF (sun protection factor). Secara keseluruhan, penelitian ini menyarankan bahwa ekstrak aseton tepung komposit mengandung komponen yang memberikan aktivitas antioksidan dan fotoprotekstif serta berpotensi melindungi kulit dari efek radiasi UV-B. Kata kunci: tepung komposit, pelarut, antioksidan dan fotoprotektif ABSTRACT  Banana, corn and sago are source of macronutriens, vitamines, minerals, dietary fiber and phytochemicals. The objective of this study was to determine antioxidant and photoprotective activities of composite flour from goroho banana, yellow Manado corn and baruk sago using different solvent. Composite flour was produced using mixture of banana, corn and sago flour in the ratio of 60:30:10. The composite flour extracted with petroleum ether, acetone, ethanol, and methanol by using a maceration extraction for 24 hours. The composite flour was evaluated using total flavonoid content (aluminium ion method), and free radical scavenging activity (1.1-diphenyl-2-phycrylhidrazyl radical assay). The in vitro photoprotective activity was studied by UV spectrophotometric method in the range of 290-320 nm. This result showed that the highest total flavonoid content was found in acetone solvent compared that of methanol, ethanol, petroleum ether, and TPTJ (control) in composite flour. The radical scavenging activity of acetone extract of flour composite showed the highest activity than ethanol, methanol, petroleum ether, and TPTJ (control). The results also showed that the acetone extract has highest photoprotective activity than methanol, ethanol and petroleum ether in sun protection factor (SPF) value. In overall, the present study suggests that acetone extract of composite flour contains components that give antioxidant and photoprotective activities and potency to protect skin of UV-B radiation effects. Keyword: composite flour, solvents, antioxidant, photoprotective
EFEK PEMANASAN TERHADAP AKTIVITAS ANTIOKSIDAN EKSTRAK EMPELUR BATANG SAGU BARUK (Arenga microcarpha B.) Landjang, Enrico Yoel; Momuat, Lidya; Suryanto, Edi
CHEMISTRY PROGRESS Vol 10, No 1 (2017)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.10.1.2017.27968

Abstract

The objective of this research was to acknowledge the effect of heating on the total phenolic compound of sago baruk trunk pith extract and the antioxidant activity of sago baruk trunk pith extract on preventing the oxidation of linoleic acid. Sago baruk trunk pith extract obtained from blending the sago baruk sample with the water solvent and was given a variety of temperature that are room temperature, 50 oC, 75 oC, and 100 oC. Total phenolic compound measured with Folin-ciocalteu method and the antioxidant activity of sago baruk trunk pith was tested to linoleic acid with Ferric Thiocyanate method to measure the peroxide inhibition percentage and Thiobarbituric Acid Reactive Substance method to measure the malonaldehyde inhibiton percentage. The result of total phenolic compound of sago baruk trunk pith extract when given the heating process with a total of 69,286-72,449 mg/kg and was higher compared to before given heating process. The best antioxidant activity of sago baruk trunk pith extract on preventing the peroxide and malonaldehyde was when given the 75 oC heating process with a value of 57,374% for peroxide inhibition and 69,527% for malonaldehyde inhibition. This research concluded that the sago baruk trunk pith extract has the best total phenolic compound and the antioxidant activity when given the 75 oC heating process.ABSTRAKPenelitian ini bertujuan untuk mempelajari efek pemanasan terhadap kandungan total fenolik dari ekstrak empulur sagu baruk serta aktivitas antioksidan ekstrak empulur sagu baruk dalam menghambat oksidasi asam linoleat. Ekstrak empulur sagu baruk diperoleh dari hasil blender sampel sagu baruk dengan pelarut air kemudian diberi perlakuan pada beberapa variasi suhu yaitu suhu kamar, 50 oC, 75 oC, dan 100 oC. Kandungan total fenolik diukur menggunakan metode Folin-ciocalteu dan aktivitas antioksidan dari ekstrak empulur sagu baruk diuji pada asam linoleat menggunakan metode Ferric Thiocyanate untuk menghitung persen penghambatan peroksida dan metode Thiobarbituric Acid Reactive Substance untuk mengukur persen penghambatan pembentukan malonaldehida. Hasil kandungan total fenolik ekstrak empulur sagu baruk ketika diberi perlakuan pemanasan dengan jumlah 69,286 – 72,449 mg/kg dan lebih tinggi dibandingkan sebelum dipanaskan. Aktivitas antioksidan dari ekstrak empulur sagu baruk dalam menghambat peroksida dan malonaldehida yang terbaik ketika diberi perlakuan suhu 75 oC dengan nilai masing-masing 57,374% untuk penghambatan peroksida dan 69,527% untuk penghambatan malonaldehida. Penelitian ini menyimpulkan bahwa ekstrak empulur sagu baruk memiliki kandungan total fenolik serta aktivitas antioksidan terbaik ketika diberi perlakuan suhu 75 oC
PENGARUH LEMON KALAMANSI (Citrus microcarpa) TERHADAP KOMPOSISI KIMIA DAN FITOKIMIA ANTIOKSIDAN DARI TEPUNG PISANG GOROHO (Musa spp.) Suryanto, Edi; Momuat, Lidya; Taroreh, Mercy; Wehantouw, Frenly
CHEMISTRY PROGRESS Vol 4, No 1 (2011)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.4.1.2011.26500

Abstract

ABSTRACTSuryanto et al., 2011. Effect of callamansi citrus (Citrus microcarpa ) on chemical composition and antioxidantphytochemical of Goroho (Musa spp.) banana flour.The objective of this research was to study chemical composition and measured antioxidant activity of gorohobanana flour which immersed with callamansi. The goroho banana was soaked with water, callamansi andsodium methabisulfit for 60 minute. Furthermore, each flour were analyzed its phytochemical such as,proximate analysis, total phenolic content, flavonoid, condensed tannin, carotenoid, ascorbic acid, totalantioxidant using titration and spectrophotometer method. The results showed that callamansi addition of 1%was the best treatment for banana flour. The product had content of moisture, ash, fat, protein, fiber andcarbohydrate were 4.29 ± 0.01; 3.74 ± 0.02; 3.03 ± 2,04; 1.47 ± 0.57; 4.75 ± 0.57 and 85.70 ± 0.59,respectively. The banana flour soaked with callamansi for 60 minute had phenolic, flavonoid, condensed tannintotal content were 55.82 ± 0,01; 6.27 ± 0.08 and 36.50 ± 0.24 mg/kg, respectively. Whereas ascorbic acid andcarotenoid total content of goroho banana flour were 51.92 ± 3.73 and 6.36 ± 1.13mg /kg sample, respectively.Total antioxidant of banana flour extract soaked with callamansi shows high activity compared without soakedand soaked with sodium methabisulfit for 60 minute. The results showed that banana flour immersed withcalamansi extract and sodium metabisulfit possess different proximate composition (p<0.05). Banana immersedwith calamansi extract appears to increase phenolic, flavonoid, condensed tannin, ascorbic acid content as wellas the capacity antioxidant of banana four.Keywords : goroho banana, proximate, flour, callamansi, antioxidant phytochemical
POTENSI ANTIOKSIDAN DAN FOTOPROTEKTIF TEPUNG KOMPOSIT DARI PISANG GOROHO, JAGUNG MANADO KUNING DAN SAGU BARUK Suryanto, Edi; Momuat, Lidya
CHEMISTRY PROGRESS Vol 10, No 2 (2017)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.10.2.2017.27750

Abstract

ABSTRAK Pisang, jagung dan sagu merupakan sumber makronutrien, vitamin, mineral, serat pangan dan fitokimia. Tujuan penelitian adalah untuk menentukan aktivitas antioksidan dan fotoprotektif tepung komposit dari pisang goroho, jagung manado kuning dan sagu baruk menggunakan perbedaan pelarut. Tepung komposit diproduksi menggunakan campuran tepung pisang, jagung dan sagu pada perbandingan 60:30:10. Tepung komposit dievaluasi menggunakan kandungan total flavonoid (metode aluminium), aktivitas antioksidan (uji radikal 1,1-diphenyl-2-phycrylhidrazyl) dan aktivitas fotoprotektif (uji SPF menggunakan spektrofotometer). Hasil penelitian ini menunjukkan bahwa kandungan total flavonoid tertinggi ditemukan pada pelarut aseton dibandingkan dengan methanol, ethanol, petroleum eter dan TPTJ (kontrol) pada tepung komposit. Aktivitas penangkal radikal bebas ekstrak aseton tepung komposit menunjukkan aktivitas paling tinggi daripada ekstrak etanol, metanol, petroleum eter dan TPTJ (kontrol). Hasil penelitian ini juga menunjukkan bahwa ekstrak aseton mempunyai aktivitas fotoprotektif paling tinggi daripada ekstrak metanol, etanol, petroleum eter dan TPTJ (kontrol) pada nilai SPF (sun protection factor). Secara keseluruhan, penelitian ini menyarankan bahwa ekstrak aseton tepung komposit mengandung komponen yang memberikan aktivitas antioksidan dan fotoprotekstif serta berpotensi melindungi kulit dari efek radiasi UV-B. Kata kunci: tepung komposit, pelarut, antioksidan dan fotoprotektif ABSTRACT  Banana, corn and sago are source of macronutriens, vitamines, minerals, dietary fiber and phytochemicals. The objective of this study was to determine antioxidant and photoprotective activities of composite flour from goroho banana, yellow Manado corn and baruk sago using different solvent. Composite flour was produced using mixture of banana, corn and sago flour in the ratio of 60:30:10. The composite flour extracted with petroleum ether, acetone, ethanol, and methanol by using a maceration extraction for 24 hours. The composite flour was evaluated using total flavonoid content (aluminium ion method), and free radical scavenging activity (1.1-diphenyl-2-phycrylhidrazyl radical assay). The in vitro photoprotective activity was studied by UV spectrophotometric method in the range of 290-320 nm. This result showed that the highest total flavonoid content was found in acetone solvent compared that of methanol, ethanol, petroleum ether, and TPTJ (control) in composite flour. The radical scavenging activity of acetone extract of flour composite showed the highest activity than ethanol, methanol, petroleum ether, and TPTJ (control). The results also showed that the acetone extract has highest photoprotective activity than methanol, ethanol and petroleum ether in sun protection factor (SPF) value. In overall, the present study suggests that acetone extract of composite flour contains components that give antioxidant and photoprotective activities and potency to protect skin of UV-B radiation effects. Keyword: composite flour, solvents, antioxidant, photoprotective
KARAKTERISASI DAN AKTIVITAS ANTIOKSIDAN SERAT PANGAN DARI TEPUNG KULIT LEMON CUI (Citrus microcarpa) Dika, Oki Oktaviani; Suryanto, Edi; Momuat, Lidya
CHEMISTRY PROGRESS Vol 14, No 1 (2021)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.14.1.2021.34129

Abstract

Tujuan dari penelitian ini untuk mengekstraksi dan mengkarakterisasi antioksidan serat pangan dari kulit lemon cui (Citrus microcarpa) dengan perbedaan pelarut menggunakan gelombang ultrasonik. Hasil penelitian menunjukkan bahwa tepung kulit lemon cui yang diekstraksi dengan perbedaan pelarut  tidak mengalami perubahan mendasar pada komponen utama ditunjukkan pada hasil spectra Fourier Transfrom Infra Red (FT-IR). Karakterisasi secara kimia menunjukkan TPKLC memiliki kandungan air (8,49%), abu (4,44%), lemak (0,8%), protein (12,45%), dan karbohidrat (73,99%). AKLC mengandung air (1,71%), abu (4,41%), lemak (0,56%), protein (10,56%), karbohidrat (82,76%). EKLC mengandung air (7,88%), abu (6,18%), lemak (1,04%), protein (7,68%), karbohidrat (77,22%). Hasil pengujian aktivitas antioksidan menunjukkan bahwa ekstrak fenolik EKLC (96,48%) tertinggi diikuti oleh ekstrak fenolik AKLC (95,45%), dan ekstrak fenolik TPKLC (94,29%).Hasil penelitian ini menunjukkan bahwa dengan pelarut etanol dapat meningkatkan aktivitas antioksidan dibanding dengan pelarut aquades.ABSTRACTObjective of this study to extract and characterize antioxidant dietary fiber from lemon peel cui (Citrusmicrocarpa)with different solvents using wave ultrasonic. The results showed that the lemon cui peel powder extracted with different solvents did not experience a fundamental change in the main component as shown in the results of the Fourier Transfrom Infra Red (FT-IR) spectra. Chemical characterization showed that TPKLC contained water (8.49%), ash (4.44%), fat (0.8%), protein (12.45%), and carbohydrates (73.99%). AKLC contains water (1.71%), ash (4.41%), fat (0.56%), protein (10.56%), carbohydrates (82.76%). EKLC contains water (7.88%), ash (6.18%), fat (1.04%), protein (7.68%), carbohydrates (77.22%). The results of the antioxidant activity test showed that the highest EKLC phenolic extract (96.48%) was followed by AKLC phenolic extract (95.45%), and TPKLC phenolic extract (94.29%). The results of this study indicate that ethanol solvent can increase antioxidant activity compared to distilled water solvent.
Co-Authors Dika, Oki Oktaviani Djoni Hatidja Edi Suryanto Feti Fatimah Frenly Wehantouw Julius Pontoh Landjang, Enrico Yoel Mamondol, Oktavianus Mercy Taroreh Tawary, Muhammad