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PEMANFAATAN TEPUNG KOMPOSIT BERBASIS UBI UNGU DAN KEMBANG KOL DALAM PEMBUATAN FOOD BAR BEBAS GLUTEN Soedirga, Lucia Crysanthy
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 4 No. 2 (2021): MAY
Publisher : Universitas Pelita Harapan

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The food bar is a product that widely consumed due to its convenience and nutritious. The food bar commonly made from the wheat flour; however, other ingredients such as cauliflower and purple sweet potato can use as an alternative to make a gluten-free food bar. In this research, purple sweet potato and cauliflower were processed into composite flour within ratio 100:0; 90:10; 80:20; 70:30; 60:40; and 50:50. The result has shown that 90:10 of purple sweet potato flour and cauliflower was selected as the preferred ratio to make gluten free food bar. This food bar has hardness value of 983.32±1.39. The scoring result aroma, mouthfeel, texture, and taste were 2.98±1.14 (slightly not odd aroma); 3.73±1.04 (slightly not dry); 3.65±1.19 (slightly not easy to be broken); 2.93±1.23 (slightly not odd taste). Meanwhile, the degree of acceptance from panelist was neutral to slightly like toward aroma, mouthfeel, texture, taste, and overall acceptance of food bar within the value 4.80±1.11; 4.65±1.19; 4.40±1.19; 4.78±1.21; and 4.70±1.14, respectively. Moreover, it has 16.89±0.55% of moisture, 2.92±0.11% of ash, 11.01±0.11% of protein, 18.12±0.50% of fat, 51.06±0.11% of carbohydrate (by difference), and 10.82±0.07% of dietary fibre.

PEMANFAATAN TEPUNG CANGKANG TELUR DALAM PEMBUATAN FLAKES [THE UTILIZATION OF EGGSHELL FLOUR IN THE MAKING OF FLAKES] Soedirga, Lucia Crysanthy; Cornelia, Melanie
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 5 No. 1 (2021): NOVEMBER
Publisher : Universitas Pelita Harapan

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Eggshell is one of the major wastes in Indonesia due to the high consumption of chicken and duck eggs. Eggshells contain high level of calcium; thus, they have the potential to be utilize. Flakes are one of the cereal-based products that are widely used for breakfast. The result has shown that duck eggshell flour was the chosen flour with calcium of 4001.42 mg/100g, magnesium of 67.56 mg/100g, and phosphorus of 1250.55 mg/g compared to chicken eggshells. In this study, wheat flour was be substituted with duck eggshell flour at various ratios (1:0, 1:1, 1:2, and 2:1). The scoring results for color, aroma, taste, and texture were 4.79±0.06, 1.99±0.71, 2.06±0.92 and 5.03±0.59, respectively. Moreover, the degree of acceptance wasneutral to slightly like toward color, aroma, taste, texture, and overall acceptance of flakes. Based on organoleptic test, ratio 1:1 was selected as the best ratio for making flakes with a hardness value of 8933.85±357.74, oHue and lightness 89,09o dan 85,87. The best formulation of flakes had calcium of 253.93 mg/100 g, magnesium of 36.91 mg/100 g, and phosphorus of 138.35 mg/100 g, moisture of 3.61±0.05%, ash of 31.76±0.58% of, protein of 10.81±0.06%, fat of 1.70±0.09%, and carbohydrate (by difference) of 52,12%.BAHASA INDONESIA ABSTRAK:Cangkang telur merupakan salah satu limbah yang cukup besar di Indonesia karena tingginya konsumsi telur ayam dan telur bebek. Cangkang telur memiliki kandungan kalsium yang tinggi sehingga berpotensi untuk dimanfaatkan. Flakes adalah salah satu produk berbasis serealia yangbanyak dimanfaatkan untuk sarapan pagi. Hasil penelitian menunjukkan bahwa tepung cangkang telur bebek merupakan tepung terpilih dengan kadar kalsium (4001,42 mg/100g), magnesium (67,56 mg/100g), dan fosfor (1250,55 mg/g). Selain itu, pada penelitian ini, tepung terigu akan disubsitusi dengan tepung cangkang telur bebek pada berbagai rasio (1:0, 1:1, 1:2, dan 2:1).Hasil skoring warna (4,79±0,06), aroma (1,99±0,71), rasa (2,06±0,92), tekstur (5,03±0,59). Selain itu, tingkat kesukaan panelis terhadap flakes adalah netral hingga agak suka untuk atribut warna, aroma, rasa, tekstur, dan penerimaan keseluruhan. Berdasarkan uji organoleptik ini, rasio 1:1 antara tepung terigu dan tepung cangkang telur bebek merupakan rasio terpilih padapembuatan flakes. Flakes terbaik ini memiliki nilai kekerasan sebesar 8933,85±357,74, oHue dan lightness 89,09o dan 85,87. Flakes pada formulasi terpilih memiliki kadar kalsium (253.93 mg/100 g), magnesium (36.91 mg/100 g), dan fosfor (138.35 mg/100 g), kadar air (3,61±0,05%), kadar abu; (31,76±0,58%), kadar protein (10,81±0,06%), kadar lemak (1,70±0,09%) kadar karbohidrat (by difference) (52,12%).

Pemanfaatan Tepung Daun Singkong sebagai Substitusi Tepung Terigu dalam Pembuatan Kukis [Utilization of Cassava Leaves Flour as Wheat Flour Substitute in the Making of Cookies] Soedirga, Lucia Crysanthy
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 5 No. 2 (2022): MAY
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v6i1.5284

Cookies are a product commonly made from wheat flour as the main ingredient and widely consumed by people. However, gluten in wheat flour can cause allergies, so the consumption of wheat-based products is limited. Furthermore, cookies also have low levels of protein and dietary fibre. Therefore, it is necessary to find another raw materials as an alternative in the making of cookies. In this research, wheat flour substituted with cassava leaves flour in various ratios (100:0; 90:10; 80:20; 70:30, and 60:40). The results showed that substituting wheat flour with cassava leaves flour at a ratio of 70:30 was the preferred ratio in making cookies. The resulting cookies have 10.24±0.11% of protein, 15.98±0.05 % of dietary fibre, 77.05 % of spread ratio, and 3512.47±126.68 g of hardness. In addition, the resulting cookies have slightly intense of cassava leaves aroma (4.88±1.17), slightly intense of cassava leaves taste (4.88 ±1.24), sandy (3.80±1.30) and hard (4.88±0.97) texture. The panellist slightly dislike the aroma (3.40±1.46) and taste (3.23±1.48). Meanwhile, the panellist slightly like the hardness of cookies (5.35±0.83). Further the panellist gave neutral acceptance on the sandy texture (4.75±1.54) and overall cookies (4.28±1.43). Bahasa Indonesia Abstract:Kukis merupakan salah satu jenis produk yang menggunakan tepung terigu sebagai bahan baku utama. Namun gluten pada tepung terigu dapat menyebabkan alergi sehingga konsumsi produk berbasis terigu menjadi terbatas. Selain itu kukis juga memiliki kadar protein dan serat pangan yang rendah, oleh sebab itu perlu dicari alternatif bahan baku utama dalam pembuatan kukis. Pada penelitian ini tepung terigu akan disubstitusi dengan tepung daun singkong pada berbagai rasio (100:0; 90:10; 80:20; 70:30, dan 60:40). Hasil menunjukkan bahwa substitusi tepung terigu dengan tepung daun singkong pada rasio 70:30 merupakan rasio terpilih dalam pembuatan kukis. Kukis yang dihasilkan memiliki memiliki 10,24±0,11 % protein, 15,98±0,05 % serat pangan, spread ratio 77,05 %, dan kekerasan 3512,47±126,68 g. Selain itu kukis pada rasio terpilih agak beraroma khas daun singkong (4,88±1,17), agak terasa daun singkong (4,88±1,24), memiliki tekstur berpasir (3,80±1,30) dan keras (4,88±0,97). Panelis agak tidak suka terhadap aroma (3,40±1,46) dan rasa 3,23±1,48). Namun, panelis agak menyukai tekstur kukis (5,35±0,83). Selain itu, panelis tingkat kesukaan netral diberikan panelis terhadap tekstur berpasir (4,75±1,54) dan penerimaan keseluruhan (4,28 ± 1,43).

KARAKTERISTIK FISIKOKIMIA NUGET NABATI BERBASIS KACANG ARAB DAN AKAR LOTUS DENGAN VARIASI JENIS FILLER [PHYSICOCHEMICAL CHARACTERISTICS OF CHICKPEA AND LOTUS ROOT PLANT-BASED NUGGETS WITH A VARIETY OF FILLER TYPES] Soedirga, Lucia Crysanthy; Cornelia, Melanie
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 6 No. 1 (2022): NOVEMBER
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v6i2.5881

Chicken nuggets are the most common type of meat-based product that is commonly sold in the market, however, chicken nuggets are not suitable for vegetarian groups. Therefore, it is necessary to find another raw material as an alternative in the making of plant-based nuggets. However, the selection of raw materials in the making of plant-based products often does not emphasize the diversification aspect. Food diversification needs to be improved as an effort to encourage people to diversify their food so that they do not focus on only one type. Chickpeas and lotus root, as well as local starch sources such as tapioca, sago, and corn-starch, are examples of alternative materials that can be used to enhance the diversification aspect in the making of plant-based nuggets. The aim of this study was to determine the selected ratio of chickpea paste and lotus slices along with other types of fillers to make plant-based nuggets based on the physicochemical characteristics. The results showed chickpea paste and sliced lotus root at a ratio of 75:25 with corn-starch as a filler produced plant-based nuggets with physicochemical characteristics: hardness 165.21±7.82 g.force; springiness 0.37±0.01 mm; cohesiveness 0.59±0.03 kg.sec., lightness of 52.71±2.11 and a frying loss of 8.21±2.15%. The moisture, fat, protein, ash, carbohydrate (by difference), and fiber content of selected formulation of nuggets were 40.20±0.42%, 6.73±0.04%; 7.38±0.15%, 3.44±0.02%, 42.16±0.54%, 8.49%; respectively.BAHASA INDONESIA ABSTRACT:Nuget ayam merupakan jenis olahan daging yang banyak dijual di pasaran namun tidak cocok untuk dikonsumsi oleh kelompok vegetarian. Hal ini mendorong adanya alternatif mencari bahan baku lain dalam pembuatan produk nuget nabati, tetapi, pemilihan alternatif bahan pada produk non-daging seringkali tidak memperhatikan aspek diversifikasi. Diversifikasi pangan perlu ditingkatkan sebagai upaya untuk mendorong masyarakat dalam memvariasikan makanan agar tidak terfokus pada satu jenis saja. Kacang arab dan akar lotus serta sumber pati lokal seperti tepung tapioka, tepung sagu, dan tepung maizena merupakan contoh alternatif bahan yang dapat digunakan sekaligus meningkatkan aspek diversifikasi dari pembuatan nuget nabati. Tujuan dari penelitian ini adalah untuk menentukan rasio pasta kacang arab dan irisan lotus serta jenis filler terpilih dalam pembuatan nuget nabati berdasarkan karakteristik fisikokimianya. Hasil penelitian menunjukkan pasta kacang arab dan irisan akar lotus pada rasio 75:25 dengan tepung maizena sebagai filler menghasilkan nuget nabati dengan karakteristik fisikokimia, yakni hardness 165,21±7,82 g.force; springiness 0,37±0,01 mm; cohesiveness 0,59±0,03 kg.sec., lightness 52,71±2,11 dan frying loss 8,21±2,15%. Kadar air, kadar lemak, kadar protein, kadar abu, kadar karbohidrat (by difference), dan kadar serat pangan nuget nabati formulasi terpilih masing-masing sebesar 40,20±0,42%; 6,73±0,04%; 7,36±0,02%, 3,44±0,02%, 42,24±0,54%, 8,49%.

PRODUKSI N-ASETILGLUKOSAMIN DARI KITIN KULIT UDANG DENGAN FERMENTASI MENGGUNAKAN Salmonella enterica STRAIN LT2 [PRODUCTION OF N-ACETYLGLUCOSAMINE FROM SHRIMP SHELLS’ CHITIN BY FERMENTATION USING Salmonella enterica STRAIN LT2] Halim, Yuniwaty; Soedirga, Lucia Crysanthy; Michelle, Valentina
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 6 No. 1 (2022): NOVEMBER
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v6i2.5920

Chitin is found abundantly in shrimp shells and can be converted into N-acetylglucosamine, which has a wide range of uses in the biomedical and industrial fields. Chitin can be produced using chitinase produced by bacteria through the fermentation process. Salmonella enterica strain LT2 was one of the chitinolytic bacteria that was isolated from shrimp shells. This research aimed to determine the best pH (5, 6, 7, 8, and 9) and temperature (32oC, 37oC, and 42oC) of fermentation, as well as fermentation time (2, 3, 4, 5, and 6 days) for the production of N-acetylglucosamine using the S. enterica strain LT2. Results showed that the highest production of N-acetylglucosamine occurred at the temperature of 37oC, pH of 8, and 4 days of fermentation, which produced 69.62 ± 1.00 g/L of N-acetylglucosamine. Furthermore, the highest N-acetylglucosamine production for the fermentation time occurred on the third day which produced 73.19 ± 1.63 g/L of N-acetylglucosamine.Bahasa Indonesia Abstract:Kitin banyak ditemukan pada cangkang udang dan dapat dipecah menjadi N-asetilglukosamin, yang banyak digunakan dalam dunia biomedik maupun industri lainnya. Kitin dapat diproduksi menggunakan kitinase yang dihasilkan oleh bakteri melalui proses fermentasi. Salmonella enterica strain LT2 merupakan salah satu bakteri kitinolitik yang diisolasi dari cangkang udang. Penelitian ini bertujuan untuk menentukan pH (5, 6, 7, 8, dan 9) dan suhu fermentasi (32oC, 37oC, dan 42oC) terbaik, serta lama fermentasi terbaik (2, 3, 4, 5, dan 6 hari) untuk produksi N-asetilglukosamin menggunakan S. enterica LT12. Hasil penelitian menunjukkan bahwa produksi N-asetilglukosamin diperoleh pada suhu fermentasi 37oC, pH 8, dan waktu fermentasi 4 hari, yang menghasilkan N-asetilglukosamin sebesar 69,62 ± 1,00 g/L. Selain itu, produksi N-asetilglukosamin tertinggi terjadi setelah fermentasi pada hari ketiga, yaitu sebesar 73,19 ± 1,63 g/L.

PEMANFAATAN PUREE NANAS DALAM PEMBUATAN SELAI LEMBARAN DENGAN PENAMBAHAN KONJAK DAN KARAGENAN PADA BERBAGAI RASIO DAN KONSENTRASI [UTILIZATION OF PINEAPPLE PUREE IN THE PRODUCTION OF SHEET JAM WITH THE ADDITION OF KONJAC AND CARRAGEENAN AT VARIOUS RATIO AND CONCENTRATIONS] Soedirga, Lucia Crysanthy
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 6 No. 2 (2023): MAY
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v7i1.6588

Sheet jam is one of the processed products from pineapple puree. Sliced pineapple jam is a modified product of conventional jam products which generally has to be smeared before use, so it is considered impractical. Sheet jam has a denser texture, is not sticky and does not break when folded. Hence, the correct hydrocolloid ratio and concentration affect the characteristics of the sheet jam produced. This study aimed to determine ratios (1:0, 0:1, 2:1, 1:1, 1:2) and concentrations (1%; 1.25%; 1.5%; 1.75%) konjac with carrageenan on the physicochemical characteristics of sliced pineapple jam. The combination of konjac and carrageenan, at a ratio of 2:1 at a concentration of 1%, is the best ratio and concentration in producing pineapple jam. These sheet pineapple jams have hardness and cohesiveness values of 2337.44 ± 218.612 and 0.80 ± 0.04, respectively. This sheet of pineapple jam has a pH value of 3.73 ± 0.01, so it is included in high-acid food products and has total dissolved solids of 28.70 ± 0.01°Brix. Pineapple jam made with a combination of konjac-carrageenan at a concentration of 1% and a ratio of 2:1 has a yellow colour (80.85 ± 4.60) and a lightness of 46.09 ± 2.80.Bahasa Indonesia Abstract:Selai lembaran merupakan salah satu produk olahan dari puree nanas. Selai nanas lembaran merupakan produk modifikasi dari produk selai konvesional yang umumnya harus dioles ketika akan digunakan sehingga dianggap kurang praktis. Selai lembaran memiliki tekstur yang lebih padat, tidak lengket serta tidak mudah patah ketika dilipat sehingga rasio dan konsentrasi hidrokoloid yang tepat berpengaruh terhadap karakteristik selai lembaran yang dihasilkan. Tujuan dari penelitian ini adalah untuk menentukan rasio (1:0, 0:1, 2:1, 1:1, 1:2) dan konsentrasi (1%; 1,25%; 1,5%; 1,75%) konjak dengan karagenan terhadap karakteristik fisikokimia selai nanas lembaran. Kombinasi konjak dengan karagenan pada rasio 2:1 yang dibuat pada konsentrasi 1% merupakan rasio dan konsentrasi terbaik dalam menghasilkan selai nanas lembaran. Selai nanas lembaran ini memiliki nilai hardness dan cohesiveness sebesar 2337,44±218,612 dan 0,80±0,04. pH selai nanas lembaran sebesar 3,73±0,01 sehingga termasuk ke dalam produk pangan tinggi asam dan memiliki warna kuning (80,85±4,60) serta lightness sebesar 46,09±2,80. Total padatan terlarut selai nanas lembaran lebih rendah (28,70±0,01°Brix) dibandingkan dengan SNI 3746-2008 (minimal 65°Brix).

ANALISIS KADAR AIR, KADAR SERAT, DAN RENDEMEN TEPUNG SINGKONG DENGAN MENGGUNAKAN BERBAGAI METODE PENGERINGAN [ANALYSIS OF WATER CONTENT, FIBRE CONTENT, AND YIELD OF CASSAVA FLOUR WITH SEVERAL TYPES OF DRYING METHOD] Lucia C. Soedirga; Melanie Cornelia; Vania Vania
FaST : Jurnal Sains dan Teknologi Vol. 2 No. 2 (2018): NOVEMBER
Publisher : Universitas Pelita Harapan

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Cassava is one of the carbohydrate sources, after rice and maize in Indonesia. However, the cassava has higher water content so that its quality will decrease during the storage period. One of the processing that can be done is throughout the flouring process of cassava. Wheat flour imports are increasing from year to year, so this cassava flour can be used as an indigenous food resource to replace the usage of wheat flour. Besides, the wheat flour itself also contains gluten therefore it cannot be consumed by people with gluten intolerance, moreover, processing cassava into flour can be an alternative for the usage of wheat flour. This study aims to determine the best drying method to produce cassava flour with the highest fibre content. The drying method used was cabinet dryer (60 ° for 4, 6, 8 hours), oven (60 ° for 8, 16, 24 hours), and microwave oven (170 watts for 16, 18, and 20 minutes). The results showed that drying process by using an oven at 60 °C for 24 hours was the best method to produce cassava flour which has the highest fibre content and rendered content, and lowest water content compared with another drying method. ABSTRAKSingkong merupakan komoditas bahan pangan sumber karbohidrat ketiga di Indonesia setelah beras dan jagung. Namun singkong memiliki kadar air yang tinggi sehingga kualitasnya akan mengalami penurunan selama masa penyimpanan. Salah satu proses pengolahan yang dapat dilakukan adalah mengolah singkong menjadi tepung. Tepung singkong ini dapat digunakan sebagai sumber daya pangan lokal untuk menggantikan tepung terigu yang terus mengalami peningkatan impor dari tahun ke tahun. Tepung terigu juga mengandung gluten sehingga tidak dapat dikonsumsi oleh orang dengan intoleransi gluten sehingga pengolahan singkong menjadi tepung dapat menjadi salah satu alternatif dari tepung terigu. Penelitian ini bertujuan untuk menentukan metode pengeringan terbaik dari singkong untuk menghasilkan tepung singkong dengan kadar serat yang tertinggi. Metode pengeringan yang digunakan adalah cabinet dryer (60° selama 4, 6, 8 jam), oven (60° selama 8 , 16, 24 jam) , dan microwave oven (170 watt selama 16, 18, dan 20 menit). Hasil penelitian menunjukkan bahwa pengeringan dengan menggunakan oven pada suhu 60° C selama 24 jam merupakan metode terbaik dalam menghasilkan tepung singkong yang memiliki kadar serat pangan dan rendemen tertinggi, serta kadar air terendah jika dibandingkan dengan metode pengeringan lainnya. Kata kunci : singkong, cabinet dryer, oven, microwave oven, kadar serat

AKTIVITAS ANTIBAKTERI EKSTRAK DAUN BELIMBING WULUH (Averrhoa bilimbi L.) TERHADAP BAKTERI PATOGEN PANGAN Lucia Crysanthy Soedirga
FaST : Jurnal Sains dan Teknologi Vol. 3 No. 2 (2019): NOVEMBER
Publisher : Universitas Pelita Harapan

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Antibacterial activity of Averrhoa bilimbi leaves extracts on pathogenic bacteria was observed in this study by using well diffusion method. The leaves were extracted using maceration method with three different solvents, i.e. ethanol (polar), ethyl acetate (semi polar), and hexane (non polar). Moreover, different concentrations (5,10,15,20, and 25%) of bilimbi leaves extract were also observed in this study in order to determine which solvent and concentration gave the highest antibacterial activity against B.cereus, S.aureus, Pseudomonas sp., and Enterobacter sp. Further objectives of this research were to determine the MIC and MBC for each bacteria from the selected extract. The result showed that ethanol extract gave the highest antibacterial activity with inhibition diameter ranging from 2.55 mm for Enterobacter sp. to 12.36 mm for B.cereus. Moreover, MIC and MBC for Gram negative higher than the MIC and MBC for Gram positive.

KARAKTERISIK FISIKOKIMIA TEPUNG KEMBANG KOL HASIL PENGERINGAN DENGAN PENGERING KABINET DAN OVEN [Physicochemical Characteristics of Cauliflower Flour Obtained From Cabinet Dryer and Oven] Lucia Crysanthy Soedirga; Intan C Matita; Terezya E. Wijaya
FaST : Jurnal Sains dan Teknologi Vol. 4 No. 2 (2020): NOVEMBER
Publisher : Universitas Pelita Harapan

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Cauliflower is considered as valuable vegetables due to its nutritive value such as dietary fiber. However, fresh cauliflower has short shelf-life. Therefore, conversion of cauliflower into flour through drying process can improve its utilization and nutrition value. This research aims to determine the best drying time of cabinet dryer at 50°C (16, 20, 24 hours) and oven at 70°C (16, 20, 24 hours) toward dietary fibre content, lightness value, and yield. The result shown that 24 hours of drying by using cabinet dryer and 24 hours of drying with oven could produce cauliflower flower with the preferred physicochemical characteristics. Both cabinet dryer and oven with the best drying time was analyzed to produce cauliflower flour with the highest dietary fiber content. Based on the result, cabinet drying at 50°C for 24 hours produce cauliflower flour with the highest dietary fiber content 38.59±0.29%. Moreover, it has 12.43 ± 0.49% of moisture, 11.32 ± 0.34% of ash, 28.88 ± 0.41% of protein, 2.34 ± 0.32% of fat, and 45.04 ± 0.62% of carbohydrate (by difference). AbstrakKembang kol segar memiliki umur simpan yang pendek sehingga pembuatan tepung kembang kol dapat meningkatkan pemanfaatan dan nilai nutrisinya. Penelitian ini bertujuan untuk menentukan waktu pengeringan terbaik dengan menggunakan pengering kabinet 50°C (16, 20, 24 jam) dan oven 70°C (16, 20, 24 jam) terhadap kadar serat, tingkat kecerahan, dan rendemen. Hasil penelitian menunjukkan bahwa waktu pengeringan selama 24 jam dengan pengering kabinet dan oven dapat menghasilkan tepung kembang kol dengan karakteristik fisikokimia yang diinginkan. Tepung kembang kol dengan waktu pengeringan terbaik dari masing-masing pengering kemudian dianalisis kembali untuk menentukan metode pengeringan terbaik dengan kadar serat tertinggi. Hasil menunjukkan bahwa pengering kabinet pada suhu 50°C selama 24 jam mampu menghasilkan tepung kembang kol dengan kadar serat pangan tertinggi sebesar 38,59±0,29%. Selain itu, tepung kembang kol terbaik ini juga memiliki kadar air, kadar abu, kadar protein, kadar lemak, dan kadar karbohidrat (by difference) masing-masing sebesar 12,43 ± 0,49%, 11,32 ± 0,34%, 28,88 ± 0,41%, 2,34 ± 0,32%, dan 45,04 ± 0,62%.

PEMANFAATAN TEPUNG KOMPOSIT BERBASIS UBI UNGU DAN KEMBANG KOL DALAM PEMBUATAN FOOD BAR BEBAS GLUTEN Lucia Crysanthy Soedirga
FaST : Jurnal Sains dan Teknologi Vol. 5 No. 1 (2021): MAY
Publisher : Universitas Pelita Harapan

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The food bar is a product that widely consumed due to its convenience and nutritious. The food bar commonly made from the wheat flour; however, other ingredients such as cauliflower and purple sweet potato can use as an alternative to make a gluten-free food bar. In this research, purple sweet potato and cauliflower were processed into composite flour within ratio 100:0; 90:10; 80:20; 70:30; 60:40; and 50:50. The result has shown that 90:10 of purple sweet potato flour and cauliflower was selected as the preferred ratio to make gluten free food bar. This food bar has hardness value of 983.32±1.39. The scoring result aroma, mouthfeel, texture, and taste were 2.98±1.14 (slightly not odd aroma); 3.73±1.04 (slightly not dry); 3.65±1.19 (slightly not easy to be broken); 2.93±1.23 (slightly not odd taste). Meanwhile, the degree of acceptance from panelist was neutral to slightly like toward aroma, mouthfeel, texture, taste, and overall acceptance of food bar within the value 4.80±1.11; 4.65±1.19; 4.40±1.19; 4.78±1.21; and 4.70±1.14, respectively. Moreover, it has 16.89±0.55% of moisture, 2.92±0.11% of ash, 11.01±0.11% of protein, 18.12±0.50% of fat, 51.06±0.11% of carbohydrate (by difference), and 10.82±0.07% of dietary fibre.

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