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The Effect of the pH of Aquades Solvent on the Physicochemical Characteristics of Parijoto (Medinilla Speciosa) Extract Effendi, Nazmirafa; Septiana, Aisyah Tri; Handayani, Isti
Indonesian Journal of Food Technology Vol 3 No 1 (2024): Indonesian Journal of Food Technology
Publisher : Program Studi Teknologi Pangan Fakultas Pertanian UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.ijft.2024.3.1.11636

Parijoto is an endemic Indonesian plant that is believed to have many health benefits. Parijoto fruit extraction is an effort to obtain extracts so that they are more applicable in the food sector. This research aims to examine the effect of the pH of the distilled water solvent on the characteristics of parijoto extract. Extraction was carried out using the Microwave-Assisted Extraction (MAE) method. Aquades was chosen as a solvent because it is safe, easy to obtain, and cheap. pH adjustment was carried out using citric acid and Ca(OH)2 to produce pH 2,4,6,9 and 11. As a control, distilled water was not adjusted for pH. The research was conducted experimentally using a Randomized Block Design. Repetition was carried out 5 times. The resulting extract was observed for levels of anthocyanins, vitamin C, total titratable acids, pH, and total dissolved solids. Based on the results, the highest levels of anthocyanins (31.64 mg/L), total titratable acids (10.36%), and total dissolved solids (3.63 oBrix), were produced using distilled water pH 2, but vitamin C (26.64 mg/100 g), and the pH of the extract (1.92) was the lowest. The highest levels of vitamin C (77.40 mg/100 g) were produced in distilled water without pH adjustment (pH 6.0).

Karakteristik warna annatto yang dihasilkan melalui metode gabungan maserasi dan microwave assisted extraction menggunakan aquades sebagai pelarut Handayani, Isti; Septiana, Aisyah Tri; Sustriawan, Budi; Sitorus, Ester Mastiur; Effendi, Nazmirafa; Geisha, Rahmania; Salsabila, Muna Verentsya
Jurnal Teknologi & Industri Hasil Pertanian Vol 30, No 1 (2025): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtihp.v30i1.78-87

Annatto is a natural pigment that is a common ingredient in the food industry. Conventionally, extraction is performed using oil or organic solvents. This study aims to analyze the color characteristics of annatto produced using a combined maceration method and microwave-assisted extraction (MAE) using aquadest as a solvent. The pH of the aquadest was adjusted using citric acid and Ca(OH)2 to produce pH 4, 7, and 9. The control used only maceration with distilled water without pH adjustment. Annatto extraction began with maceration using a magnetic stirrer at a temperature of 80oC for 5 minutes. Further, the MAE method used 100 W of power for 2, 4, and 6 minutes. Bixin and norbixin were analyzed to determine the pigment. Color was measured using a colorimeter to assess L (brightness), a (redness), and b (yellowness), and the maximum wavelength was determined. The results showed that extraction using the maceration or a combination of maceration and MAE produced 1.5% pigment. Higher brightness was made by the combined method using pH 4 aquadest for 2 minutes. A higher intensity of red color was created by the combined method with pH 9 aquadest for 4 minutes, while there was no difference in the intensity of yellow color between maceration and the combined method. Aquadest as a solvent is effective for annatto extraction by maceration and a combination of maceration and MAE. The annatto extract has a maximum wavelength of 300 nm.

Chemical and Sensory Characteristics of Cookies from “Protani” Rice Flour that Affected by Source of Fat and Whey Protein Sustriawan, Budi; Aini, Nur; Ramadani, Nurista Riski; Handayani, Isti; Safitri, Eka; Mustaufik, Mustaufik; Wicaksono, Rumpoko
Indonesian Journal of Food Technology Vol 4 No 1 (2025): Indonesian Journal of Food Technology
Publisher : Program Studi Teknologi Pangan Fakultas Pertanian UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.ijft.2025.4.1.14580

The purpose of the study is to investigate how the kind of fat and the addition of whey protein affect the chemical and sensory characteristics of cookies made with modified Protani rice flour. The study used a Randomized Block Design (RBD). There were 2 factors studied, namely the type of fat and the addition of whey powder. The types of fat consisted of 3, namely margarine, a combination of margarine and virgin coconut oil (VCO) and VCO. The percentage of whey protein addition consisted of 3, namely 5, 10, 15%. The variables observed included water content, ash, fat, protein, reducing sugar, carbohydrates and sensory variables (color, aroma, texture, taste, and preference). Chemical and sensory variable data were analyzed using the Analysis of Variance (ANOVA) test and further using Duncan’s Multiple Range Test (DMRT) at the 95% level. The use of margarine can increase water, ash, protein and reducing sugar content, while virgin coconut oil (VCO) can increase fat and carbohydrate content. The higher the concentration of whey protein added, the higher the water, ash, fat, protein and reducing sugar content. The best cookies were obtained by using margarine and adding 15% whey protein, with a water content of 3.8%, ash 0.8%, fat 21.4%, protein 11.9% and reducing sugar 4.6%. The cookies have sensory properties of brownish yellow color (4.2), typical cookies aroma (4.4), slightly crumbly texture (3.7), slightly delicious taste (3.7) and liking (4.2). Cookies from fermented Protani rice flour have the potential to be developed into commercial products.

Restrukturisasi daging sandung lamur menjadi patties burger menggunakan enzim transglutaminase Susanti, Norma Rahma; Astuti, Santi Dwi; Handayani, Isti
AGROINTEK Vol 19, No 3 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i3.16044

The processing of beef brisket into patties is one of a approach to increase the value of low-quality meat. Transglutaminase (TGase) enzyme was used to restructure the beef brisket more effective. This aim of this research was to determine the effect of different mechanical treatments and concentrations of TGase on the physical and chemical characteristics of brisket patties. The beef brisket was elaborated with mechanical treatment (milled and chopped) and different levels of the TGase (0.5%, 0.75%, and 1%). The products were distinguished by their physical properties (hardness, cohesiveness, springiness, chewiness, water holding capacity) and chemical properties (ash, protein, fat, water activity). The data were analyzed using 2x3 factorial completely randomized design (CRD) by GLM-ANOVA model of SPSS software with 4 repetitions. A significant increased (P0.05) was observed for the mechanical treatment (hardness, springiness, chewiness, WHC) and differences in TGase concentrations (cohesiveness, WHC). Regarding the proximate composition (ash, protein and fat), no significant differences (P0.05) were found. The effectiveness index analysis showed a combination of milled brisket with the addition of 1% TGase could be an efficient method to increase the physical properties.

SIFAT KIMIAWI MENTEGA KETAPANG (Catappa butter) (Pengaruh Lama Sangrai Dan Lama Rendam) wijonarko, Gunawan; erminawati, erminawati; Handayani, isti
Agrin Vol 23, No 1 (2019): Agrin
Publisher : Jenderal Soedirman University

Biji ketapang mempunyaicita rasa yang enak dan komposisi kimia yang mirip dengan kacang tanah. Oleh karena itu biji ketapang mempunyai potensi yang sangat besar untuk dibuat menjadi produk pangan baru. Salah satu produk pangan tersebut adalah mentega ketapang (Catapa butter). Berdasarkan hal tersebut maka perlu dilakukan penelitian yang bertujuan untukmengevaluasi sifat kmiawi mentega ketapang yang dibuat pada berbagai : (1) lama penyangraian (2) lama perendamanÂ (3) lama penyangraian dan perendaman.Rancangan yang digunakan dalam peneltian ini adalah Rancangan Acak Lengkap. Faktor yang dicoba adalah lama penyangraian (4 ; 8 ; dan 12 menit) dan lama prendaman (0 dan 12 jam). Perlakuan disusun secara faktorial sehingga diperoleh 6 kombinasi perlakuan. Percobaan diulang 4 kali dengan 24 unit percobaan. Variabel yang diamati adalah kadar air, abu, serat kasar, lemak dan protein. Data hasil pengamatan dianalisis menggunakan Uji F. Jika terdapat perbedaan nyata antar perlakuan maka dilanjutkan dengan Uji Rentang Jamak Duncan (DMRT) untuk menentukan perlakuan terbaik. Perlakuan terbaik kemudian dibandingakn dengan selai kacang tanah non komersial. Hasil penelitian menunjukkan lama penyangraian berpengaruh nyata terhadap kadar air dan abu sedangkan perendaman berpengaruh nyata terhadap kadar air, abu dan protein. Kombinasi keduanya memberikan pengaruh yang nyata hanya terhadap kadar protein. Penyangraian 8 menit menghasilkan mentega ketapang dengan kadar air 2,8% dan abu 2,6% sedangkan perendaman 0 jam menghasilkan mentega ketapang dengan kadar air 2,5%, abu 2,7% dan protein 26,5%. Kombinasi kedua perlakuan berpengaruh terhadap kadar air, abu dan protein mentega ketapang. Dibandingkan dengan SNI selai kacang tanah, mentega ketapang mempunyai karakter kimiawi yang mirip kecuali pada kadar abu yang cenderung lebih tinggi yaitu sebesar 2,7%. Â Penyangraian 8 menit dan perendaman 0 jam menghasilkan mentega ketapang dengan kadar air 2,7%, abu 2,5%, serat kasar 1,8%, lemak 50,6% dan protein 27,6%.

UPAYA PENGEMBANGAN USAHA SALE PISANG JANNAH CILACAP BERDASARKAN TINGKAT KEPENTINGAN DAN KEPUASAN KONSUMEN Mela, Ervina; Masitoh, Monalisa; Handayani, Isti
Agrin Vol 27, No 2 (2023): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2023.27.2.767

Usaha Mikro, Kecil, dan Menengah JANNAH merupakan perusahaan yang memproduksi sale pisang. Perusahaan ini masih memiliki beberapa kendala dalam hal produksi, distribusi, promosi, dan pemasaran. Penelitian ini bertujuan untuk mengetahui atribut yang perlu diperbaiki dan menentukan strategi perbaikan produk sale pisang JANNAH. Penelitian dilakukan dengan kuesioner yang disebarkan secara purposive sampling dan hasil penelitian dianalisis menggunakan Importance Performance Analysis (IPA) dan Causal Loop Diagram (CLD). Hasil penelitian menunjukkan, atribut yang menjadi prioritas perbaikan adalah informasi yang tertera pada label kemasan, promosi dan pemasaran melalui media sosial, kemudahan dalam memperoleh produk, dan kemampuan kemasan dalam melindungi produk. Strategi perbaikan yang direkomendasikan antara lain mengikuti penyuluhan atau pelatihan mengenai label kemasan pangan, mengubah desain label kemasan dengan menambahkan informasi yang belum ada, mengikuti penyuluhan atau pelatihan pemanfaatan media sosial sebagai alat pemasaran, memanfaatkan fitur-fitur pemasaran yang terdapat pada Facebook dan WhatsApp, menggunakan alat pemasaran online lainnya, melakukan edit gambar produk, menyusun copywriting, membuat jadwal promosi, membuat konten promosi yang beragam, memaksimalkan kapasitas produksi saat cuaca terik, bermitra dengan pemasok pisang lainnya, menerapkan teknologi tepat guna pada alat penjemuran, bermitra dengan warung atau toko lainnya, mengikuti penyuluhan atau pelatihan penggunaan marketplace, membuat dan mengelola akun marketplace secara aktif, menerapkan sistem pengawasan mutu terhadap kemasan, dan mengganti kemasan dengan standing pouch berwarna yang dilengkapi dengan jendela/window.

The color characteristics of annato from achiote seeds (Bixa orellana L.) extracted with the assistance of microwaves: Karakteristik warna annatto yang dihasilkan melalui metode gabungan maserasi dan microwave assisted extraction menggunakan aquades sebagai pelarut Handayani, Isti; Septiana, Aisyah Tri; Sustriawan, Budi; Sitorus, Ester Mastiur; Effendi, Nazmirafa; Geisha, Rahmania; Salsabila, Muna Verentsya
Jurnal Teknologi & Industri Hasil Pertanian Vol. 30 No. 1 (2025): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtihp.v30i1.78-87

Annatto is a natural pigment that is a common ingredient in the food industry. Conventionally, extraction is performed using oil or organic solvents. This study aims to analyze the color characteristics of annatto produced using a combined maceration method and microwave-assisted extraction (MAE) using aquadest as a solvent. The pH of the aquadest was adjusted using citric acid and Ca(OH)2 to produce pH 4, 7, and 9. The control used only maceration with distilled water without pH adjustment. Annatto extraction began with maceration using a magnetic stirrer at a temperature of 80oC for 5 minutes. Further, the MAE method used 100 W of power for 2, 4, and 6 minutes. Bixin and norbixin were analyzed to determine the pigment. Color was measured using a colorimeter to assess L (brightness), a (redness), and b (yellowness), and the maximum wavelength was determined. The results showed that extraction using the maceration or a combination of maceration and MAE produced 1.5% pigment. Higher brightness was made by the combined method using pH 4 aquadest for 2 minutes. A higher intensity of red color was created by the combined method with pH 9 aquadest for 4 minutes, while there was no difference in the intensity of yellow color between maceration and the combined method. Aquadest as a solvent is effective for annatto extraction by maceration and a combination of maceration and MAE. The annatto extract has a maximum wavelength of 300 nm.

Pengaruh konsentrasi tepung pisang ambon dan penambahan Lactobacillus casei terhadap karakteristik kimia yogurt sinbiotik Handayani, Isti; Nuraini, Nuraini
Jurnal Agrotek Ummat Vol 9, No 3 (2022): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i3.8452

Synbiotic yogurt is a yogurt that contains probiotics and prebiotics and is one type of functional food. This study aims to determine the effect of the addition of L. casei and ambon banana flour on the chemical characteristics of synbiotic yogurt. The study was conducted using a randomized group design with two treatments, namely the type of starter and the concentration of ambon banana flour. Starters used: 1) Steptococcus thermophilus and Lactobacillus bulgaricus; 2) Steptococcus thermophillus, Lactobacillus bulgaricus, and Lactobacillus casei. The concentration of added banana flour is as follows: 0; 2,5; 5,0; 7,5; and 10%. The observed variables include pH, total titrated acid, and reduction sugar. The results showed that the addition of L. casei to yogurt culture increased pH, total titrated acid, and reduction sugar. Where, the increase in the concentration of ambon banana flour decreases the pH and sugar reduction but increases the total titrated acid yogurt.

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