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PENGARUH TEKNIK PELAPISAN KITOSAN SEBAGAI EDIBLE COATING TERHADAP UMUR SIMPAN BUAH PEPAYA CALINA (Carica papaya L.): PENGARUH TEKNIK PELAPISAN KITOSAN SEBAGAI EDIBLE COATING TERHADAP UMUR SIMPAN BUAH PEPAYA CALINA (Carica papaya L.) Andrew Setiawan Rusdianto; Renata Sita Windria; Winda Amilia; Miftahul Choiron; Maria Belgis
Jurnal Agroindustri Vol. 14 No. 2 (2024): November 2024
Publisher : BPFP Faperta UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jagroindustri.14.2.224-236

Abstract

Papaya Calina atau Pepaya California merupakan buah klimaterik yang memiliki daya simpan yang pendek sehingga sangat mudah rusak oleh mikroorganisme. Edible coating dapat melindungi produk dari kerusakan mikroorganisme, mencegah adanya kerusakan kimiawi yang membuat produk menjadi berjamur bersifat hidrofobik dan memiliki sifat antimikroba. Kitosan memiliki sifat yang mudah mengalami degradasi secara biologis, renewable, tidak beracun, dan merupakan kation kuat, flokulan, koagulan yang baik, serta mudah membentuk membrane atau film. Tujuan dari penelitian ini yaitu membentuk Edible coating kitosan untuk melindungi pepaya dari kerusakan mikroorganisme. Edible coating kitosan diaplikasikan pada Pepaya Calina dengan tiga teknik yaitu cara pemolesan, penyemprotan, dan pencelupan. Data uji fisik dan kimia dianalisa ragam atau ANOVA dengan signifikansi 0,05 (5%) atau taraf kepercayaan 95%, apabila didapatkan perbedaan nyata, maka dilanjutkan dengan uji lanjut Duncan's Multiple Range Test (DMRT) pada taraf 5%. Nilai hasil tertinggi dari Uji de Garmo yaitu perlakuan pelapisan edible coating berbasis kitosan pada Pepaya Calina menggunakan teknik pengaplikasian pencelupan mendapat nilai 0,859 dan pelapisan edible coating berbasis kitosan menggunakan teknik pengaplikasian penguasan mendapat nilai 0,842.  Berdasarkan uji indeks efektivitas dengan bobot sebesar 0,859 yaitu jenis perlakuan edible coating kitosan teknik celup dapat bertahan ingga hari ke-9 memiliki hasil data pengujian: susut bobot 7,62%, tekstur 25,9 mm/10dtk, warna L* 55,4; warna a* 11,6; warna b* 33,7; laju respirasi 14,250 mgCO2/kg/jam, vitamin C 291,22 mg/100g, dan total padatan terlarut 18,2 ⁰Brix.
Differentiation of Arabica Coffee from Several Regions and Roasting Condition by Detecting Released Gases using Electronic Food Nose Belgis, Maria; Witono, Yuli; Vico Danuartha, Laurensius Ardian; Taruna, Iwan; Suryadharma, Bertung
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 41 No. 1 (2025)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v41i1.683

Abstract

This study was aimed to identify the differentiation of Arabica coffee from West Java, East Java, West Nusa Tenggara and Bali using an electronic food nose. The analysis was conducted based on variations in temperature and roasting time to evaluate the effect of these parameters on coffee aroma characteristics. This research used an electronic nose device to detect volatile compounds quickly and accurately. The electronic nose was equipped with MQ-3, MQ-8, MQ-135, and MQ-136 sensors, able to detect alcohol, hexane, hydrogen, carbon dioxide, and hydrogen sulfide gas. Arabica coffee from various parts of Indonesia was roasted on three levels (light, medium, and dark). The results showed that variations in roasting temperature (220, 230, and 240 °C) and time (10, 13, and 17 min) significantly affected the volatile compounds’ profile. The temperature and roasting time correlated proportionally to the hexane gas, CO2 , and alcohol produced. Conversely, the lower the temperature and the faster the roasting process, the higher H2S gas was produced. Based on this, using an electronic nose effectively distinguishes the aroma characteristics of coffee based on differences in temperature and roasting time. This research contributes to helping improve the quality of Indonesian arabica coffee by understanding how temperature variation and roasting time length can be used to optimize the coffee production process and improve the coffee quality produced.
Sensory Profile of Cocoa Powder Using Analytical Hierarchy Process Tunjung-Sari, Ariza Budi; Prameswari, Fitrih Salsabilah; Belgis, Maria; Amilia, Winda
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 38 No. 3 (2022)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v38i3.514

Abstract

Cocoa powder comes with various attributes in its taste affecting consumer acceptance. The analytical hierarchy process (AHP) approach can be used to identify the effect of each attribute on the sensory profile of cocoa powder. This present study used the AHP approach to determine the degree of importance of sensory attributes on several types of cocoa powder and find the type with the best sensory profile. Cocoa powder comes from cocoa beans made through fermentation and non-fermentation process. In addition, we used non-fermented cocoa powder treated with water and incubated at 45oC for 4, 8, and 16 hours later named as incubated cocoa powder. Then, the sensory attributes of fermented cocoa powder were used as the reference in assessing the sensory profile of incubated cocoa powder, including the one going through the treatment. The sensory analysis performed by trained panelists revealed 11 attributes that made up the flavor profile of cocoa powder. Of these 11 attributes, only 4 were considered primary attributes with a high degree of importance, including chocolate (23.7%), sweet (19.9%), caramel (11.8%), and nutty (10.9%). Other attributes had a lower degree of importance, including creamy (7.4%), fruity (6.5%), green (5.4%), flowery (4.8%), astringent (4.5%), bitter (3.1%), and acid (2.2%). AHP also ranked the incubated cocoa powder based on the similarity of the flavor profile with fermented cocoa powder. Nonfermented cocoa powder without treatments fell into the lowest rank, while nonfermented cocoa powder with treatments fell into a higher category in the following order: 8 hours > 16 hours > 4 hours. To summarize, AHP can be used in decisionmaking affected by many factors. AHP has been proven effective in determining the sensory profile of cocoa powder, especially in choosing the attribute withthe highest effect. In addition, AHP helps determine the best treatment for incubated cocoa powder to produce the most similar sensory profile to fermented cocoa powder.
Sensory Profile on Robusta Coffee by Rate-All-That-Apply (RATA) Belgis, Maria; Zhafirah Arifin, Thalita; Prameswari, Dayintaguna; Taruna, Iwan; Choiron, Miftahul; Witono, Yuli; Dwi Masahid, Ardiyan
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 39 No. 1 (2023)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v39i1.546

Abstract

Coffee flavor strongly influences consumers preference. Geographical location is one factor influencing the flavor of Robusta coffee. Descriptive sensory using RATA was used to differentiate the sensory profiles of several Robusta coffees. Sensomic approach by Principal Component Analysis (PCA) success- fully differentiated Robusta coffee from Jember Regency, East Java, Indonesia. It showed that Robusta from different growing locations has specific sensory characteristics. Robusta coffee from Gunung Malang, Tanggul, and Pakis was characterized by sweet and acid aromas, while coffee from Kemiri was characterized by sweet and sour taste, brown color, bitter aroma, and rough mouthfeel. Meanwhile Sidomulyo I and Sidomulyo II coffees, which were grown near each other and at similar altitudes, have similar characteristics, although the process was different. Both coffees have bitter aftertastes and bodies, burnt aromas, astringent flavors, and high levels of bitterness. In contrast, Robusta Rowosari, Tugusari, and Badean were characterized by low sweetness, sourness, bitter aroma, and rough mouthfeel.
Development of Enzyme Production Technology with Double Protease Immobilization Method (Calotropin and Papain) Witono, Yuli; Masahid, Ardiyan Dwi; Giyarto, Giyarto; Belgis, Maria; Jayanti, Puja Dwi; Wahyuni, Livia
Indonesian Food Science and Technology Journal Vol. 8 No. 2 (2025): Volume 8. Number 2, July 2025 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v8i2.37509

Abstract

Abstract—Enzymes are biocatalysts widely applied in agriculture, food processing, chemical industries, and medical fields. Enzymes can be used singly or immobilized within a matrix. However, free enzymes often exhibit lower stability compared to immobilized enzymes. Therefore, this research aimed to evaluate the combined two proteolytic enzymes for extracting protein hydrolysates. The objective was to analyze enzymes' immobilization characteristics using carrageenan and determine the optimal concentration combination. Calotropin and papain were applied at concentrations of 2.5 mL, 3.5 mL, and 4.0 mL, respectively. The analysis parameters included yield, enzyme activity, soluble protein content, specific enzyme activity, stability, and kinetic parameters (Km and Vmax). The results showed that the combined proteases exhibited yields ranging from 44.43% to 48.63%; enzyme activities of 9.23–53.63 U/mL; soluble protein contents of 2.40–2.89 mg/mL; and specific enzyme activities of 3.54–18.62 U/mg protein. The enzymes were maintained stability at temperatures ranging from 30 to 60 °C. The kinetic parameters were determined as Km = 0.0034 g/mL and Vmax = 17.094 U/min.