Rachel Breemer
Jurusan Teknologi Hasil Pertanian Fakultas Pertanian Universitas Pattimura, Jl. Ir. M. Putuhena Kampus Poka Ambon 97233

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Journal : AGRITEKNO, Jurnal Teknologi Pertanian

Pengaruh Penambahan Sodium Tripolyphosphate Terhadap Karakteristik Tepung Buru Hotong (Setaria italica L Beauv.) Fosfat Breemer, Rachel; Sigmarlatu, Trisonda; Polnaya, Febby J
AGRITEKNO: Jurnal Teknologi Pertanian Vol 9 No 2 (2020): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2020.9.2.88

Abstract

This study aimed to characterize phosphate-modified buru hotong flour modified used sodium tripolyphosphate (STPP). Buru hotong flour was phosphorylated at 45°C with STPP concentration of 10, 15.20, and 25% for 30 minutes. Observations were conducted on the physicochemical properties of native buru hotong flour and its derivatives, including phosphorus levels, degree of substitution (DS), moisture content, ash content, swelling power, solubility, and amylose content. The results showed that the phosphorus content of buru hotong phosphate flour increased (0.023-0.077%) with the DS ranged between 0.001-0.004. Phosphorus and DS levels indicated the substitution of phosphate groups. Substituted phosphate groups increased the moisture content (6.92-10.23%), ash content (0.37-0.84%), swelling power (10.16-15.63%), solubility (29.22-46.2%), and amylose content (26.29-29.37%) of buru hotong phosphate flour compared with native flour. The characteristics of phosphate hotong flour were different from their native. The higher the concentration of STPP, all of the variables were increases. Keywords: sodium tripolyphosphate, buru hotong phosphate flour, physicochemical properties ABSTRAK Penelitian ini bertujuan untuk mengkarakterisasi tepung buru hotong fosfat yang dimodifikasi dengan menggunakan sodium tripolyphosphate (STPP). Tepung buru hotong difosforilasi pada suhu 45oC dengan konsentrasi STPP 10, 15, 20 dan 25% selama 30 menit. Pengamatan dilakukan terhadap sifat fisiko-kimia tepung buru hotong alami dan derivatnya, meliputi kadar fosfor, derajat substitusi (DS), kadar air, kadar abu, daya gelembung, daya larut, dan kadar amilosa. Hasil penelitian menunjukkan bahwa kadar fosfor tepung buru hotong fosfat meningkat (0,023-0,077%) dengan kisaran DS antara 0,001-0,004. Kadar fosfor dan DS menunjukkan terjadinya substitusi gugus fosfat. Tersubstitusinya gugus fosfat menyebabkan meningkatnya kadar air (6,92-10,23%), kadar abu (0,37-0,84%), daya gelembung (10,16-15,63%), daya larut (29,22-46,2%) dan kadar amilosa (26,29-29,37%) tepung buru hotong fosfat dibandingkan dengan tepung buru hotong alami. Karakteristik tepung buru hotong fosfat berbeda dengan tepung alaminya. Semakin tinggi konsentrasi STPP maka setiap peubah yang dialami mengalami peningkatan. Kata kunci: Sodium tripolyphosphate, tepung buru hotong fosfat, sifat-sifat fisiko-kimia
Karakteristik Kimia dan Organoleptik Sirup Gandaria dengan Penambahan Konsentrasi Gula Breemer, Rachel; Palijama, Syane; Jambormias, Julius
AGRITEKNO: Jurnal Teknologi Pertanian Vol 10 No 1 (2021): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2021.10.1.56

Abstract

“Gandaria” fruit is a seasonal fruit that is easy to prepare but cannot be kept fresh for a long time. Processing technology is important for creating a food product with a longer shelf life and being consumed outside of the season. Processing “gandaria” into syrup is one of the methods. The syrup has a thick and distinctive taste characteristic because it contains 55-65% sugar. This study aimed to determine what sugar concentration is best for producing good “gandaria” fruit syrup. A completely randomized experimental design with one factor, namely the concentration of sugar, i.e., 50%, 55%, 60%, 65%, and 70% repeated three times, was applied in this research. The results showed that sugar concentration treatment produced syrup with total sugar 59,36-65,97%, total acidity 13.48-17.35%. vitamin C 16.47-16.97%, and total soluble solid 39.27-46.43%. Organoleptic characteristics, namely color (rather yellow to yellow), aroma (slightly gandaria aroma), taste (slightly gandaria taste to gandaria taste), thickness (somewhat like to like), overall (somewhat like to like). The best sugar concentration in producing good gandaria syrup was 70%. Keywords: Gandaria; sugar concentration; syrup ABSTRAK Buah gandaria merupakan buah musiman yang mudah dan tidak dapat dikonsumsi dalam bentuk segar dalam waktu yang lama. Penerapan teknologi pengolahan sangat penting untuk menghasilkan produk pangan olahan yang memiliki daya simpan yang lebih lama dan dapat dikonsumsi diluar musim salah satunya adalah mengolah gandaria menjadi sirup. Sirup memiliki karakteristik yang kental dan rasa yang khas karena mengandung gula 55-65%. Penelitian ini bertujuan untuk menentukan konsentrasi gula yang tepat dalam menghasilkan sirup buah gandaria yang baik. Rancangan percobaan yang digunakan dalam penelitian ini adalah rancangan acak lengkap dengan satu faktor yaitu konsentrasi gula 50%, 55%, 60%, 65% dan 70%, masing-masing perlakuan diulang sebanyak tiga kali. Hasil menunjukkan bahwa perlakuan konsentrasi gula 55-70% menghasilkan total gula sebesar 59,36-65,97%, total asam sebsesar 17,35-13,48%, vitamin C sebesar 16,97-16,47%, dan total padatan terlarut sebesar 39,27-46,43%, dan karakteristik organoleptik warna (agak kuning-kuning), aroma (agak beraroma gandaria), rasa (agak berasa gandaria-berasa ngandaria), kekentalan (agak suka-suka), overall (agak suka-suka). Salah satu perlakuan konsentrasi terbaik adalah perlakuan konsentrasi gula 70%. Kata kunci: Gandaria; konsentrasi gula; sirup
Characterization of Chemical Properties of Gandaria (Bouea macrophylla Griff) Restructuring Results Using Gelatin Breemer, Rachel; Pattiruhu, Gysberth
AGRITEKNO: Jurnal Teknologi Pertanian Vol 12 No 1 (2023): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2023.12.1.50

Abstract

Fruits are one of the foodstuffs that have a lot of nutritional content. One of them is gandaria fruit (bouea macrophylla Griff). Gandaria is one of the perishable fruit commodities. To increase consumption and add value to gandaria fruit, it can be done by restructuring techniques. The purpose of this study was to examine the chemical characteristics of restructuring gandaria including water content, total acid, pH, vitamin C and ash content. The results showed that the interaction of agar and gandaria treatments had an effect on the water content. The single treatment of agar had no effect on the ash content. The best formulation from the results of this study was the treatment with 75% agar and 100 g of gandaria (A2B2).
Physicochemical and Organoleptic Characteristics of Nutmeg Instant Drink (Myristica fragrans Houtt) with Variations of Maltodextrin Concentration Rumata, Sakila; Breemer, Rachel; Picauly, Priscilia
AGRITEKNO: Jurnal Teknologi Pertanian Vol 12 No 1 (2023): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2023.12.1.75

Abstract

Nutmeg is an export commodity that can be utilized in the food or beverage industries. Only a small portion of the nutmeg flesh is used, so the remainder is discarded as waste. Nutmeg pulp waste can be used to make an instant nutmeg powdered drink. Processing instant nutmeg drinks requires fillers such as maltodextrin to expedite drying and protect the raw materials from damage. This study aimed to determine the best maltodextrin concentration on an instant nutmeg drink's physicochemical and sensory characteristics. In this research, a completely randomized experimental design with four levels of maltodextrin treatment, including 10, 15, 20, and 25%, replicated twice, was applied. The result showed that the best treatment was a concentration of 25% because it had a moisture content of 7.42%, a vitamin C of 16.74%, a yield of 22.13%, and a water absorption of 11.50%. The sensory analysis showed that a maltodextrin concentration of 2% was slightly liked for its slightly brownish yellow color, slightly liked for its slight nutmeg aroma, and liked for its nutmeg taste.
Pengaruh Suhu, Sistim Penyimpanan dan Lama Penyimpanan Terhadap Karakteristik Kimia Buah Tomat Pattiruhu, Gysberth; Breemer, Rachel
AGRITEKNO: Jurnal Teknologi Pertanian Vol 13 No 2 (2024): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2024.13.1.183

Abstract

Tomato is one of the horticultural commodities that is highly perishable, thus requiring proper post-harvest handling to extend its shelf life. One approach to achieve this is by storing the tomatoes in suitable packaging and at an appropriate temperature. This study aims to evaluate the effect of storage temperature and storage systems on the chemical quality of tomatoes during storage. The experimental design used is a factorial completely randomized design, where the first factor is storage temperature at room temperature of 29˚C (A1) and low-temperature storage at 15˚C (A2), and the second factor is the storage system, consisting of closed control/stretch film (B1), modified packaging/stretch film with the addition of 6% O2 and 8% CO2 (B2), and open control/no packaging (B3), for durations of 4, 8, 12, and 16 days. The results showed that storage at 15˚C with modified packaging (A1B2) was able to maintain moisture content at 95.9%, vitamin C content at 3.67 mg/100g, reducing sugar at 2.43%, total acid at 10.6%, and calcium at 10.58% over a period of 16 days.