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All Journal Jurnal Pangan dan Agroindustri AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Pendidikan Tata Boga dan Teknologi
Diwyacitta Antya Putri, Diwyacitta Antya
Jurusan Teknologi Hasil Pertanian Fakultas Teknologi Pertanian Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Materials Science & Nanotechnology Physics Social Sciences Other

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PENGARUH PENAMBAHAN TEPUNG AMPAS TAHU DAN JENIS KOAGULAN PADA PEMBUATAN TAHU BERSERAT [IN PRESS JANUARI 2016] Putri, Diwyacitta Antya; Yuwono, Sudarminto Setyo
Jurnal Pangan dan Agroindustri Vol 4, No 1 (2016)
Publisher : Jurusan Teknologi Hasil Pertanian, Fakultas Teknologi Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (278.069 KB)

Abstract

Tahu memiliki kandungan serat yang rendah dibanding dengan olahan kedelai lain. Tepung ampas tahu dapat ditambahkan untuk meningkatkan kadar serat tahu, dengan pemilihan koagulan yang tepat. Tujuan penelitian ini untuk mengetahui pengaruh penambahan tepung ampas tahu dan jenis koagulan pada karakteristik tahu. Penelitian menggunakan Rancangan Acak Kelompok dua faktor (konsentrasi tepung ampas tahu dan jenis koagulan) dengan tiga ulangan. Konsentrasi tepung ampas tahu dan jenis koagulan tidak berpengaruh nyata terhadap kadar air dan protein. Kandungan serat meningkat dengan meningkatnya konsentrasi tepung ampas tahu. Kadar serat tahu dengan koagulan whey lebih tinggi dari pada cuka. Tahu dengan koagulan cuka memiliki rendemen lebih tinggi dari pada koagulan whey. Tahu tanpa tepung ampas tahu memiliki tekstur terbaik, sedangkan tekstur tahu dengan koagulan whey lebih kokoh. Berdasarkan organoleptik, rerata kesukaan rasa tertinggi adalah kombinasi tepung ampas tahu 1% dengan koagulan cuka.   Kata kunci: Koagulan, Serat, Tahu berserat, Tepung ampas tahu
ANALYSIS OF PHYSICOCHEMICAL AND ORGANOLEPTIC CHARACTERISTICS OF YELLOW PUMPKIN PUDDING (CUCURBITA MOSCHATA) Putri, Diwyacitta Antya; Muyasyaroh, Hidayatun; Lukitasari, Febriani; Astuti, Nugrahani; Rerung, Novia Tesalonika Amanda; Ifadah, Raida Amelia
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 9 No. 3 (2025): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v9i3.7589

Abstract

Yellow pumpkin (Cucurbita moschata) is a nutrient-rich horticultural commodity with considerable potential for development into various food products, including pudding. However, scientific information regarding the effects of pumpkin incorporation on the physicochemical and sensory characteristics of pudding remains limited. This study aimed to evaluate the influence of different proportions of pumpkin (30%, 50%, and 70%) on the physicochemical properties, vitamin C content, and sensory acceptance of pumpkin pudding. A Completely Randomized Design (CRD) was employed with three replications for each treatment. The analyses included syneresis at two storage conditions (refrigerated and room temperatured), total dissolved solids (TDS), texture (hardness), color parameters (L*, a*, b*), vitamin C content determined by iodometric titration, and a hedonic test involving 30 untrained panelists. Data were analyzed using ANOVA followed by Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results showed that increasing the proportion of pumpkin had significant effects on TDS, texture, color attributes, vitamin C content, and most sensory parameters. Higher pumpkin concentrations decreased TDS and hardness values while increasing syneresis due to higher free-water content within the gel matrix. Lightness (L*) and vitamin C levels increased proportionally with the amount of pumpkin added. Sensory evaluation revealed that the 30% pumpkin formulation received the highest scores for color, aroma, texture, taste, and overall acceptance, whereas the 70% formulation received the lowest scores, particularly for color and chewiness. These findings indicate that the 30% pumpkin incorporation provides the most optimal balance of physical quality, nutritional enhancement, and consumer acceptability. Keywords: Organoleptic, Physicochemical Properties, Pudding, Pumpkin, Vitamin c
PHYSICAL CHARACTERISTICS OF WHITE BREAD WITH VARIOUS LEVELS OF PURPLE SWEET POTATO FLOUR SUBSTITUTION Ifadah, Raida Amelia; Putri, Diwyacitta Antya; Lukitasari, Febriani; Handajani, Sri; Nurlaela, Luthfiyah; Nugraheni, Fitriana
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 10 No. 1 (2026): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v10i1.7731

Abstract

This study evaluated the effect of wheat flour substitution with purple sweet potato flour on the physical characteristics of white bread. The experiment was conducted using a Completely Randomized Design with a single factor, namely the level of purple sweet potato flour substitution at 0%, 15%, 30%, 45%, and 60%. The physical parameters analyzed included color (L*, a*, b*), texture (firmness), porosity, and dough expansion.The results showed that increasing levels of purple sweet potato flour substitution significantly affected all physical parameters of the bread (p < 0.05). Higher substitution levels resulted in a decrease in lightness (L*) and an increase in a* values, indicating darker crumb and crust color due to the presence of anthocyanin pigments. Bread firmness increased from 6.45 ± 0.13 N in the control sample to 50.16 ± 2.90 N at 60% substitution, while porosity and dough expansion decreased markedly from 45.34 ± 0.42% to 22.13 ± 1.19% and from 89.09 ± 0.02% to 15.71 ± 3.24%, respectively.Substitution of purple sweet potato flour at 30% produced bread with acceptable physical characteristics, characterized by a balanced texture, porosity, and dough expansion. Substitution levels above this threshold resulted in a significant decline in bread quality. These findings indicate that purple sweet potato flour has strong potential as a functional ingredient in white bread formulation. Keywords: flour substitution; physical characteristics; purple sweet potato flour; white bread. Abstrak Penelitian ini bertujuan untuk mengevaluasi pengaruh substitusi tepung terigu dengan tepung ubi jalar ungu terhadap karakteristik fisik roti putih. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) dengan satu faktor, yaitu tingkat substitusi tepung ubi ungu sebesar 0%, 15%, 30%, 45%, dan 60%. Parameter yang dianalisis meliputi warna (L*, a*, b*), tekstur, porositas, serta daya kembang. Hasil penelitian menunjukkan bahwa peningkatan tingkat substitusi tepung ubi ungu berpengaruh signifikan (p < 0,05) terhadap seluruh parameter fisik roti. Peningkatan substitusi menyebabkan penurunan nilai kecerahan (L*) pada serta peningkatan nilai a*, yang menunjukkan penggelapan warna akibat keberadaan pigmen antosianin. Nilai tekstur meningkat dari 6,45 ± 0,13 N pada roti kontrol menjadi 50,16 ± 2,90 N pada substitusi 60%, sedangkan porositas dan pengembangan adonan mengalami penurunan berturut-turut dari 45,34 ± 0,42% menjadi 22,13 ± 1,19% dan dari 89,09 ± 0,02% menjadi 15,71 ± 3,24%. Substitusi tepung ubi ungu 30% menghasilkan roti dengan karakteristik fisik yang masih dapat diterima, ditandai dengan keseimbangan antara tekstur, porositas, dan daya kembang. Substitusi di atas tingkat tersebut menyebabkan penurunan kualitas fisik roti yang signifikan. Penelitian ini menunjukkan bahwa tepung ubi ungu berpotensi dimanfaatkan sebagai bahan fungsional dalam formulasi roti putih. Kata kunci: karakteristik fisik; roti tawar; substitusi tepung; tepung ubi jalar ungu.  
Development Of Flashcard Learning Media With Augmented Reality (AR) On Plant-Based Ingredients At Culinary Vocational School Nur Azizah, Anistian; Lukitasari, Febriani; Nurlaela, Luthfiyah; Putri, Diwyacitta Antya
Jurnal Pendidikan Tata Boga dan Teknologi Vol 7, No 1 (2026): Jurnal Pendidikan Tata Boga dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptbt.v7i1.27072

Abstract

The use of learning media will help educators in delivering learning materials so that they can be well understood by students. However, in culinary learning, especially in the material of plant-based food cuts, the learning media used is still dominated by conventional learning methods such as lectures. The media cannot be used to visualize the shape and technique of the pieces in the material, this causes students to tend to be passive and less interested in understanding the material presented. Thus, innovative and interactive learning media is needed to improve students' understanding. Augmented Reality (AR) was chosen as a solution because it is able to display real visuals in 3D so as to help students understand the material visually and realistically. This research aims to develop flashcard learning media with Augmented Reality (AR) on plant-based food ingredient materials, to determine the feasibility of the material and the feasibility of the media for the learning media that has been developed. The type of research and research model used is ADDIE, but the research is limited to the development stage. The subjects of this study are class X students totaling 34 students, while the object of this study is flashcard learning media with augmented reality (AR). The instruments used in this study include validation sheets of material experts and media experts on the media used. The results of this study were concluded that flashcard media with AR is in the form of printed products that include material cut from plant-based foodstuffs, the results of the material validation show a feasibility value of 91% which is included in the very feasible category. Media validation obtained an average score of 97% with a very decent category.
Development Of Hots-Based Test Questions Wayground On Basic Food Processing Techniques In Culinary Vocational School Fajriah, Elok; Pangesthi, Lucia Tri; Nurlaela, Luthfiyah; Putri, Diwyacitta Antya
Jurnal Pendidikan Tata Boga dan Teknologi Vol 7, No 1 (2026): Jurnal Pendidikan Tata Boga dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptbt.v7i1.27174

Abstract

The availability of assessment instruments that measure Higher Order Thinking Skills in basic food processing techniques is still limited. Therefore, an appropriate instrument is needed to evaluate students’ higher-order thinking abilities. This study aimed to develop and examine the quality of a HOTS-oriented test instrument on basic food processing techniques. The research employed a Research and Development (R&D) method using the 4D model (define, design, develop, and disseminate). The test was implemented through Wayground, an online interactive learning platform used to create and administer digital quizzes and assessments. The research subjects consisted of 59 students. Data analysis included item validity using Product Moment correlation, reliability using Cronbach’s Alpha, as well as analysis of item difficulty, discrimination index, distractor effectiveness, and completion time. The results indicated that 28 out of 55 items (50.9%) were valid. The reliability coefficient reached 0.81, categorized as very high. The difficulty level was dominated by moderate items (57%), followed by easy (39.5%) and difficult items (3.5%). The discrimination index showed fair (32%), good (43%), and very good (25%) categories. Distractor effectiveness was mostly in the good (57%) and very good (25%) categories. The fastest average completion time was 22 seconds, while the longest was 1 minute and 17 seconds. These results indicate that the instrument is feasible for measuring students’ higher-order thinking skills in basic food processing techniques.
Co-Authors Fajriah, Elok Fitriana Nugraheni, Fitriana Lukitasari, Febriani Luthfiyah Nurlaela Muyasyaroh, Hidayatun Novia Tesalonika Amanda Rerung Nugrahani Astuti Nur Azizah, Anistian Pangesthi, Lucia Tri Raida Amelia Ifadah Sri Handajani Sudarminto Setyo Yuwono