Claim Missing Document
Check
Articles

Found 16 Documents
Search

SHOOT, TOTAL PHENOLIC, AND ANTHOCYANIN PRODUCTION OF Plectranthus amboinicus WITH ORGANIC FERTILIZING Ekawati, Rina; Aziz, Sandra Arifin; Andarwulan, Nuri
Buletin Penelitian Tanaman Rempah dan Obat Vol 24, No 2 (2013): Balai Penelitian Tanaman Rempah dan Obat
Publisher : Balittro

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

Abstract

ABSTRACTBangun-bangun [Plectranthus amboinicus] is a functional vegetable that is used as lactagogue. This research was aimed to provide information of the effect of organic fertilizer on shoot, total phenolic, and anthocyanin production of bangun-bangun. This experiment was conducted at Bogor Agricultural University, Leuwikopo experimental station (Indonesia), from December 2012 to February 2013. The experiment was laid out in randomized block design with single factor with five combination of organic fertilizer treatments (combination of cow manure 12.3 t ha-1, rock phosphate 1.5 t ha-1, rice-hull ash 5.5 t ha-1) with three replications. The result showed that application of organic fertilizer increased of shoot production. Application of 12.3 t ha-1 cow manure + 1.5 t ha-1 rock phosphate + 5.5 t ha-1 rice-hull ash produced shoot dry weight ha-1 (57.33%) and metabolite production ha-1 (total phenolic 12.06%, anthocyanin 41.73%) higher than no fertilizing (P > 0.05). Application of cow manure + rock phosphate produced the lowest shoot dry weight ha-1 and metabolite production ha-1. The result of this research suggested that nitrogen, phosphorus, and potassium were needed on shoot production of bangun-bangun.Key words: Plectranthus amboinicus, phenylalanine ammonia lyase, secondary metabolite
KARAKTERISTIK KARAGENAN HASIL ISOLASI Eucheuma spinosum (Alga merah) DARI PERAIRAN SEMENEP MADURA Diharmi, Andarini; Fardiaz, Dedi; Andarwulan, Nuri; Heruwati, Endang Sri
Jurnal Perikanan dan Kelautan Vol 16, No 02 (2011)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.16.02.%p

Abstract

Eucheuma spinosum is a potential algal producing carrageenan in Indonesia. The aim of this resaerach is to define characteristic of carrageenanproduced by the algae harvested from Sumenep waters Madura. The carrageenanwas extracted in 1 : 50 value of Ca(OH)2 at 90-950C for 3 hours. The extract wasprecipated in 1:1 volume of 96% etanol, dried and graund. Parameters taste wereyields, moisture, sulfat, ash, acid insoluble ash, gel strenght, viscocity andmoleculer structure. The result indicated that the yield, moisture, sulphat, ash, acidinsolube ash, gel strenght, viscocity and muscular structure was 34.85%, 11.09 %,ash content 26.32 %, acid insoluble ash 0.3%, kadar sulfat content 27.76%, gelstrenght 43.70 gf respectually. The carrageenan was found to have virtuallyidentical FTIR of iota-karagenan
FORMULASI DAN KARAKTERISASI CAKE BERBASIS TEPUNG KOMPOSIT ORGANIK KACANG MERAH, KEDELAI, DAN JAGUNG The Formulation and Characterization of Cake Based on Organic Composite Flour: Red Bean, Soybean, and Corn Astuti, Santi Dwi; Andarwulan, Nuri; Hariyadi, Purwiyatno; Agustia, Friska Citra
Pembangunan Pedesaan Vol 13, No 2 (2013)
Publisher : Pembangunan Pedesaan

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

Abstract

Bahan pangan organik memiliki kandungan gizi dan komponen fungsional yang lebih tinggi dibanding non-organik serta tidak mengandung residu kimia dan logam berat. Kacang merah dan kedelai merupakan sumber protein nabati yang kaya serat pangan dan senyawa fungsional serta memiliki Indeks Glikemik rendah. Pati jagung berperan dalam memperbaiki sifat tekstural dan reologi produk pangan. Penelitian ini ditujukan untuk : 1) mengkaji karakteristik tepung komposit organik berbasis kacang merah, kedelai, dan jagung sebagai bahan pensubstitusi terigu dalam pembuatan cake; 2) mengkaji sifat fisikokimia dan sensori cake yang dihasilkan. Rasio tepung komposit organik kacang merah : kedelai : jagung yaitu 65% : 25% : 10%. Proporsi tepung komposit organik sebagai pensubstitusi terigu yaitu 0-100%. Hasil penelitian menunjukkan bahwa : 1) Tepung komposit organik memiliki kadar protein, lemak, dan serat pangan yang lebih tinggi dibanding terigu, sedangkan kadar karbohidrat dan patinya lebih rendah. Komposisi tersebut menyebabkan kemampuannya mengikat air yang tinggi pada suhu ruang dibanding terigu; sedangkan terigu memiliki kemampuan gelatinisasi (yang dilihat dari profil pasta dan viskositas) yang lebih baik; 2) Semakin tinggi proporsi substitusi terigu pada pembuatan cake menyebabkan peningkatan kadar air, abu, protein, dan serat pangan; sedangkan kadar karbohidratnya menurun. Secara sensori, terjadi penurunan pada tingkat kelembutan, kesukaan terhadap aroma, rasa, penerimaan secara keseluruhan; serta peningkatan pada intensitas warna. Substitusi terigu tidak berpengaruh besar pada sifat tekstural cake (kekerasan, elastisitas, dan daya kohesif); 3) Substitusi terigu dengan tepung komposit organik berbasis kacang-kacangan seperti kacang merah dan kedelai dapat dilakukan untuk memperbaiki nilai gizi cake terutama protein hingga taraf 50%, dan untuk meningkatkan penerimaan konsumen, produk cake dapat dikembangkan menjadi muffin.
Chemical Characterization of Flour Fractions from Five Yam (Dioscorea alata) Cultivars in Indonesia Nadia, Lula; Wirakartakusumah, M. Aman; Andarwulan, Nuri; Purnomo, Eko Hari; Noda, Takahiro; Ishiguro, Koji
Journal of Engineering and Technological Sciences Vol 47, No 1 (2015)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.836 KB) | DOI: 10.5614/j.eng.technol.sci.2015.47.1.7

Abstract

The purpose of this study was to investigate the influence of particle size on  the  chemical properties  of yam flour  in five  cultivars, yellow/YY, orange/OY, light purple/LPY, purple/PY, and dark purple/DPY. With a mesh sieve, three  flour fractions  were separated according to particle size:  small (128.6-139.7 µm), medium (228.7-257.9 µm), and large (475.4-596.3 µm). The content of moisture (6.81-11.26 %db) and lipids (4.48-9.85 %db) decreased with the increase of particle size, while proteins (4.48-9.85 %db) and carbohydrates (78.12-83.76 %db) were not influenced by particle size. Folin-Ciocalteu reagent and chlorogenic acid were used as standard to investigate the total phenolic compounds  in  the  yam  flour,  and  high-performance liquid chromatography (HPLC) was used to investigate the anthocyanin and carotene contents. It was found that there was no size influence on the content of phenolics (0.27-2.82%db), anthocyanin (2.25-15.27  mg/100g db) in LPY, PY, DPY  or  carotene (23.75-132.12 mg/100g db) in YY, OY. The differences in chemical composition were due to differences in particle size and heat treatment, but may also have been caused by the different composition of the milling process.
KARAKTERISTIK NANOEMULSI MINYAK SAWIT MERAH YANG DIPERKAYA BETA KAROTEN YULIASARI, SHANNORA; FARDIAZ, DEDI; ANDARWULAN, NURI; YULIANI, SRI
853-8212
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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

Abstract

ABSTRAKMinyak sawit merah (Red palm oil/RPO) dan β-karoten tidak larutdalam air sehingga sulit diaplikasikan ke dalam produk pangan. Salah satupendekatan untuk meningkatkan kelarutan RPO dan β-karoten adalah emulsifikasi. Penelitian ini bertujuan untuk mendapatkan nanoemulsi RPOdiperkaya β-karoten yang stabil. Penelitian dilaksanakan di LaboratoriumSEAFAST CENTER IPB dari Januari–September 2013. Pada penelitiantahap pertama, nanoemulsi disiapkan melalui tahap-tahap: pengayaan RPOdengan β β-karotenmenggunakan HPH (High Pressure Homogenizer) pada tekanan 34,5 MPadengan 10 siklus. Rasio RPO dan air dalam emulsi adalah 5 : 95; 7,5 :92,5; dan 10 : 90 (b/b), dan persentase Tween 80 sebagai pengemulsiadalah 2,5; 5,0; 7,5; dan 10% (b/b) dari total emulsi. Pada tahap kedua,nanoemulsi disiapkan dengan persentase RPO: 2, 4, dan 6% (b/b) danpengemulsi 1,5; 3,0; dan 4,5% (b/b) dari total emulsi. Hasil penelitiantahap pertama menunjukkan nanoemulsi yang dibuat dengan rasio RPO :air = 5 : 95 dan 7,5 : 92,5 serta pengemulsi 5% (b/b) menghasilkan emulsidengan ukuran droplet 115,1 sampai 145,2 nm dan stabil. Nanoemulsiyang dihasilkan dari penelitian tahap kedua memiliki ukuran droplet 94,9sampai 125,5 nm, dan kadar β-karoten antara 47,6 sampai 130,9 mg/l.Ukuran droplet nanoemulsi yang kurang dari 125 nm dapat dihasilkandengan formula rasio RPO dan pengemulsi kurang dari 2,0.Kata kunci: minyak sawit merah, β-karoten, nanoemulsi, homogenizerABSTRACTRed palm oil (RPO) and β-carotene are insoluble in water. It makescan be used to improve RPO and βThis research is aimed to produce stable RPO nanoemulsion enriched withβ-carotene. The research was conducted in the SEAFAST CENTERLaboratory, Bogor Agriculture University from January to Septemberfollowing steps, i.e. enrichment of RPO with βusing a high pressure homogenizer at a pressure of 34.5 MPa in 10 cycles.The ratio of RPO and water in the mixture were 5 : 95; 7.5 : 92.5; and 10 :10% (w/w) of the total emulsions. In the second stage, nanoemulsionswere prepared on various RPO percentage of 2, 4, and 6% (w/w) andhad a droplet size from 115.1 to 145.2 nm and stable. Nanoemulsions wereresulting from the second stage had droplet size from 94.9 to 125.5 nm,and β-carotene content were 47.6 to 130.9 mg/l. Droplet size ofnanoemulsions is less than 125 nm. It can be produced with RPO andKey words: red palm oil, β-carotene, nanoemulsion, homogenizer
FRAKSINASI KERING MINYAK KELAPA MENGGUNAKAN KRISTALISATOR SKALA 120 KG UNTUK MENGHASILKAN FRAKSI MINYAK KAYA TRIASILGLISER0L RANTAI MENENGAH MURSALIN, MURSALIN; HARIYADI, PURWIYATNO; PURNOMO, EKO HARI; ANDARWULAN, NURI; FARDIAZ, DEDI
853-8212
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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

Abstract

ABSTRAKMinyak kelapa merupakan sumber medium chain triglycerides(MCT) utama. Melalui proses fraksinasi dapat dihasilkan fraksi minyakdengan kandungan MCT tinggi. Penelitian ini bertujuan untuk mempelajaripengaruh berbagai faktor perlakuan dingin terhadap kristalisasi danfraksinasi minyak kelapa, serta untuk menetapkan prosedur pendinginanyang efektif dalam menghasilkan fraksi minyak dengan kandungan MCTtinggi. Penelitian dilaksanakan di Laboratorium SEAFAST CENTER IPBdari bulan Maret 2012 sampai bulan Februari 2013. Fraksinasi dilakukandengan memanaskan minyak pada suhu 70°C lalu didinginkan padaberbagai laju pendinginan untuk mencapai beberapa variasi suhukristalisasi, diaduk dengan kecepatan 15 rpm, dibiarkan mengkristal padalama waktu yang berbeda (hingga 900 menit), serta difraksinasi denganpenyaringan vakum menggunakan kertas Whatman 40. Tiga tahappendinginan yang merupakan faktor kunci keberhasilan proses kristalisasiminyak kelapa yaitu tahap pendinginan awal dari suhu 70 hingga 29°C;tahap pendinginan kritis 29°C hingga suhu kristalisasi; dan tahapkristalisasi itu sendiri. Pada tahap pertama minyak kelapa didinginkansecepat mungkin untuk menurunkan waktu proses, tetapi pada tahap keduaharus dilaksanakan dengan laju pendinginan lambat (kurang dari 0,176°C/menit) untuk menghasilkan kristal yang berukuran besar dan tidak mudahmeleleh. Minyak dengan kandungan triasilgliserol tinggi dapat diperolehdari fraksi olein minyak kelapa. Pada perlakuan suhu kristalisasi 21,30-21,73°C untuk laju pendinginan kritis antara 0,013 hingga 0,176°C/menit,semakin rendah laju pendinginan kritis dan semakin lama proseskristalisasi maka kandungan MCT fraksi olein yang dihasilkan akansemakin tinggi.Kata kunci: minyak kelapa, laju pendinginan, kristalisasi, fraksinasi, MCTABSTRACTCoconut oil is the main source of medium chain triglycerides(MCT). Fractionation produce oil fraction containing MCT concentrate.This research aims to study the influence of various factors of coolingtreatment on the crystallization and fractionation of coconut oil, and toestablish effective cooling procedure to produce oil fraction with highMCT content. The research was conducted in Laboratorium of SEAFASTCENTER IPB from March 2012 to February 2013. Coconut oil washeated at 70°C then cooled at different cooling rate to reach variouscrystalization temperatures. The oil was then stirred at 15 rpm and allow tocrystallized at different period of time (up to 900 min), and finallyfractionated by vacuum filtration using Whatman #40 paper. Fractionationtemperatures was the same as crystalization temperature. The resultsshowed that there were three distinct cooling regimes critical tocrystallization process, i.e temperature range from 70 to 29°C; 29°C tocrystallization temperature; and crystallization temperature. In the firstregime, melted coconut oil might be cooled quickly to save time, but in thesecond regime need be done with a cooling rate of less than 0.176°C/minto produce physically stable crystal. Oil with high triacylglycerol contentcould be obtained from olein fraction of coconut oil. At the crystallizationtemperature 21.30-21.73°C for the critical cooling rate between 0.013 to0.176°C/min, the higher MCT content of olein fraction were produced bythe lower critical cooling rate and the longer crystallization process.Keywords: fractionation, crystallization, MCT, coconut oil, cooling rate.
SHOOT, TOTAL PHENOLIC, AND ANTHOCYANIN PRODUCTION OF Plectranthus amboinicus WITH ORGANIC FERTILIZING Ekawati, Rina; Aziz, Sandra Arifin; Andarwulan, Nuri
Buletin Penelitian Tanaman Rempah dan Obat Vol 24, No 2 (2013): Balai Penelitian Tanaman Rempah dan Obat
Publisher : Balittro

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

Abstract

ABSTRACTBangun-bangun [Plectranthus amboinicus] is a functional vegetable that is used as lactagogue. This research was aimed to provide information of the effect of organic fertilizer on shoot, total phenolic, and anthocyanin production of bangun-bangun. This experiment was conducted at Bogor Agricultural University, Leuwikopo experimental station (Indonesia), from December 2012 to February 2013. The experiment was laid out in randomized block design with single factor with five combination of organic fertilizer treatments (combination of cow manure 12.3 t ha-1, rock phosphate 1.5 t ha-1, rice-hull ash 5.5 t ha-1) with three replications. The result showed that application of organic fertilizer increased of shoot production. Application of 12.3 t ha-1 cow manure + 1.5 t ha-1 rock phosphate + 5.5 t ha-1 rice-hull ash produced shoot dry weight ha-1 (57.33%) and metabolite production ha-1 (total phenolic 12.06%, anthocyanin 41.73%) higher than no fertilizing (P > 0.05). Application of cow manure + rock phosphate produced the lowest shoot dry weight ha-1 and metabolite production ha-1. The result of this research suggested that nitrogen, phosphorus, and potassium were needed on shoot production of bangun-bangun.Key words: Plectranthus amboinicus, phenylalanine ammonia lyase, secondary metabolite
Leaf Pigment, Phenolic Content, and Production of Green Shallot of Five Different Shallot Varieties Putri, Fiadini; Aziz, Sandra Arifin; Andarwulan, Nuri; Melati, Maya; Suwarto, Suwarto
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 9, No 1 (2021)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v9i1.8045

Abstract

Five shallot varieties namely ‘Bauji’, ‘Bantaeng’, ‘Tuk Tuk’, ‘Rubaru’, and ‘Palasa’ were examined for their leaf pigment, total phenolic content, leaf tissue nutrient analysis, and green shallot production. The experiment was conducted in in Cikabayan greenhouse, IPB University, Dermaga, Bogor, arranged in a randomized complete block design with single factor (variety) and three replications. The observations were carried out three times in the maximum vegetative period, consisting of 20, 30, and 40 days after planting. The result showed that ‘Palasa’ had the highest leaf pigment content, such as chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid, while the anthocyanin content fluctuated between the varieties and observation times. ‘Palasa’ also had the highest sulfur content in the leaf tissues. On the contrary, ‘Palasa’ had the lowest production compared to other the varieties. Meanwhile, ‘Bantaeng’ had the highest green shallot production, total nitrogen, and total phosphorus content in the leaf tissues. Total phenolic content fluctuated in the five varieties and observation times. The highest total phenolic content was in ‘Tuk Tuk’, observed 20 days after planting. The principal component analysis (PCA) showed that the five shallot varieties formed three clusters. The first was ‘Palasa’, the second cluster was ‘Bauji’, ‘Tuk Tuk’, and ‘Rubaru’, while the third cluster was ‘Bantaeng’. ‘Palasa’ had the highest content of leaf pigment, while Bantaeng had the highest leaf production. Leaf pigment and total phenolic content changed along with the increasing plant age in all varieties.
Isolation and Physicochemical Properties of Rice Bran Protein from Heat-Stabilized Rice Bran Kusumawaty, Inneke; Fardiaz, Dedi; Andarwulan, Nuri; Widowati, Sri; Budijanto, Slamet
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UNEJ e-Proceeding

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

Abstract

Isolation and the physicochemical properties of rice bran protein concentrate (RBPC) produced from unstabilized and heat-stabilized Pandanwangi and Ciherang rice bran were studied. Rice bran stabilization process optimization done on previous research resulted in the extrusion conditions at a temperature of 130.96oC and screw speed 26.65 Hz. Kjeldahl analysis showed that protein content of unstabilized rice bran protein concentrates (URBPC) and stabilized rice bran protein concentrates (SRBPC) of Pandanwangi and Ciherang were 60.76%, 61.38%, 60.19%, and 60.23% respectively. Amino acid composition showed that polar amino acid composition of RBPC Ciherang was higher than that in Pandanwangi leading to its solubility. The protein percentage of acid-soluble glutelin of Pandanwangi was higher than that in Ciherang rice bran protein concentrate. The molecular weight were in range from 11.19 to 60.29 kDa. Glutelin differentiated into α-glutelin (30-39 kDa) and β-glutelin (19-25 kDa). The  RBPCs from two varieties had similar denaturation temperatures (77.22 - 77.99oC) with enthalpy ranged between 109.72 J/g and 200.98 J/g. Foaming stability and emulsion activities had similiar pattern with solubilities profile and showed no significant difference between varieties (p> 0.05). This finding shows potential protein concentrate of  both heat-stabilized and unstabilized rice bran as food ingredient. Keywords: Heat-stabilized rice bran, rice bran protein, physicochemical properties
Validasi Metode Analisis Kandungan Spesifik Residu Total Monomer Stiren Pada Kemasan Polistiren Mariana, Dina; Andarwulan, Nuri; Lioe, Hanifah Nuryani
Jurnal Kimia dan Kemasan Vol. 35 No. 2 Oktober 2013
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1840.948 KB)

Abstract

Monomer stiren merupakan bahan dasar kemasan pangan yang menjadi isu perhatian terkait keamanan pangan. Saat ini di dalam peraturan nasional maupun internasional, peraturan persyaratan pada total residu dari monomer stiren dalam kemasan pangan. Dalam rangka menunjang pengawasan kemasan pangan polistiren, maka diperlukan peningkatan kapasitas pengujian kandungan spesifik residu total monomer stiren di laboratorium sesuai dengan peraturan yang berlaku. Penelitian ini bertujuan untuk melakukan validasi metode analisis pengujian kandungan spesifik residu total monomer stiren pada kemasan polistiren dengan heptana sebagai simulan pangan menggunakan kromatografi gas dengan pendeteksi ionisasi nyala, sesuai prosedur uji yang diatur dalam Peraturan Kepala Badan POM Nomor HK.03.1.23.07.11.6664 Tahun 2011 tentang Pengawasan Kemasan Pangan. Hasil validasi metode analisis adalah linieritas dengan persamaan regresi y = 0,186x nilai R2 = 0,999, presisi dengan nilai relatif standar deviasi (RSD) = 0,93 %, akurasi dengan persen perolehan kembali (% recovery) 98,04 ± 2,62 %, pada konsentrasi stiren yang ditambahkan 502 μg/g dan selektivitas yang baik.