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All Journal METANA Pro Food JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) Jurnal Ilmiah Pengabdian dan Inovasi Journal of Food and Agricultural Product Jurnal Teknologi dan Mutu Pangan Communication in Food Science and Technology TeknoKreatif: Jurnal Pengabdian kepada Masyarakat Jurnal Sains dan Teknologi Pangan
Talitha, Zada Agna
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Social Sciences Other

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Karakterisasi Ekstrak Kulit Buah Naga (Hylocereus Sp.) dengan Variasi Konsentrasi Asam Tartarat Sebagai Pewarna Alami Makanan Fernando, Fernando; Talitha, Zada Agna; Kurniawan, Rahmat
Pro Food Vol. 11 No. 2 (2025): Pro Food (Jurnal Ilmu dan Teknologi Pangan)
Publisher : Fakultas Teknologi Pangan dan Agroindustri, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/profood.v11i2.564

Abstract

Food colorant plays a vital role in the food industry by enhancing visual appeal and shaping consumer perception of product quality. Synthetic food dyes, though commonly used, have been linked to various health concerns such as allergies, hyperactivity in children, and potential carcinogenic risks when consumed above the Acceptable Daily Intake (ADI). Therefore, natural and safe alternatives are needed. This study investigates the potential use of red dragon fruit (Hylocereus sp.) peel extract as a natural food colorant and antioxidant source, using maceration extraction with varying concentrations of tartaric acid (0%, 2%, 4%, 6%, and 8%). Parameters evaluated include physical properties (yield and color intensity), chemical characteristics (pH and total anthocyanins), antioxidant activity, and food processing simulations (thermal stability, pH effects on color, and solvent solubility). The results showed that 4% tartaric acid yielded the highest extraction output, color intensity (absorbance 2.774), highest total anthocyanin, and antioxidant activity (84.06%), with optimal color stability at temperatures up to 40°C and at pH 3. The extract showed excellent solubility in water (97.41%) and 15% ethanol (96.40%), while being insoluble in oil. These results indicate that red dragon fruit peel extract has great potential as a natural dye that not only provides an attractive red color but also functions as a natural antioxidant that is safe and stable under various food processing conditions.
PENGARUH PENCAMPURAN KOPI ROBUSTA (Coffea canephora) DAN LIBERIKA (Coffea liberica) LAMPUNG TERHADAP TINGKAT KESUKAAN, KARAKTERISTIK KIMIA DAN KADAR SENYAWA BIOAKTIF Talitha, Zada Agna; Amirul Hakim, Ilham; Marvie, Ilham
Jurnal Sains dan Teknologi Pangan Vol. 11 No. 1 (2026): Jurnal Sains dan Teknologi Pangan
Publisher : Jurusan Ilmu dan Teknologi Pangan Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63071/cayq2n54

Abstract

Kopi merupakan salah satu komoditas unggulan di Provinsi Lampung, dengan jenis yang umum dibudidayakan yaitu Robusta (Coffea canephora) dan Liberika (Coffea liberica). Kopi Robusta dikenal memiliki body kuat dan kandungan kafein tinggi, sedangkan kopi Liberika memiliki karakter rasa khas seperti nangka dengan kandungan kafein lebih rendah. Pencampuran kedua jenis kopi tersebut berpotensi meningkatkan penerimaan sensori serta memperkaya karakteristik kimia minuman kopi. Penelitian ini bertujuan untuk menganalisis pengaruh rasio pencampuran kopi Robusta dan Liberika terhadap tingkat kesukaan, karakteristik kimia, dan kadar senyawa bioaktif. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan lima rasio pencampuran Robusta: Liberika, yaitu 100:0; 70:30; 50:50; 30:70; dan 0:100. Data dianalisis menggunakan One-Way ANOVA pada taraf signifikansi 5% dan dilanjutkan dengan uji Duncan Multiple Range Test (DMRT) apabila terdapat perbedaan nyata. Hasil penelitian menunjukkan bahwa pencampuran kopi berpengaruh signifikan (p < 0,05) terhadap parameter organoleptik (aroma, rasa, aftertaste, body, dan overall acceptance). Kontrol Robusta memperoleh peringkat kesukaan tertinggi, sedangkan kontrol Liberika memperoleh peringkat terendah. Pencampuran juga berpengaruh signifikan (p < 0,05) terhadap total asam tertitrasi, kadar kafein, dan aktivitas antioksidan, namun tidak berpengaruh signifikan terhadap nilai pH (p > 0,05). 
Co-Authors Adiliah, Anisa Ahmad Zainul Fatih Amirul Hakim, Ilham Fachry Abda El Rahman Fernando Fernando, Fernando Fithriyani, Dina Fitria, Agnes Nabila Ilham Marvie Jaelani, Arthinita Masayu Nur Ulfa Nisa, Uswah Choiriyatun Putri, Anita Nurani Putri, Mutiara Syadza Rahmadi, Isnaini Rahmat Kurniawan Ramadhani, Aqilah Wulan Ramanda, Muhammad Rizky SITUMORANG, ADRYAN JANVIKRA Wahyuningtyas, Amalia Yosi Syafitri Yulianti, Amalia