scholarly journals The Effet of pH and Pasteurisation Temperature on Water Content and Vitamin C Content From Tomato Sauce (Lycopersicum esculentum Mill)

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Nurhidayati Nurhidayati ◽  
Ruka Yulia ◽  
Putri Meutia Sari

<p class="E-JOURNALAbstrakTitle">The purpose of this study was to determine the effect of pH control and pasteurization temperature on making tomato sauce on the quality produced. This study uses a factorial completely randomized design (RAL) 2 which is used is the measurement of pH (R) (3, 4 and 5 and pasteurization temperature (T) (70˚C, 80˚C and 90˚C). , vitamin C and organoleptic tests (color and taste) .The results of the research showed the best treatment on the combination of R2T2 treatment with a pH regulator 4 and 800C pasteurization temperature which produced a good quality tomato sauce with chemical properties namely 77.24% moisture content, vitamin C 0.059%, organoleptic taste 3.74 (likes) and color 3.87 (likes).</p>

2018 ◽  
Vol 3 (4) ◽  
pp. 808-821
Author(s):  
Cut Betari Arhandhi ◽  
Yuliani Aisyah ◽  
Rasdiansyah Rasdiansyah

Abstrak. Umbi bit merupakan salah satu bahan pangan yang dapat digunakan sebagai pewarna alami pada pembuatan soft candy seperti rshmallow. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) dengan pola faktorial yang terdiri atas dua faktor. Faktor pertama yaitu konsentrasi ekstrak umbi bit (B) yang terdiri dari 3 taraf yaitu B1 = 5% B2 = 10% dan B3 = 15%. Faktor kedua adalah konsentrasi gelatin (G) yang terdiri dari 3 taraf yaitu G1 = 3% G2 = 5% dan G3 = 8%. Ulangan dilakukan sebanyak 3 kali sehingga diperoleh 27 satuan percobaan. Hasil penelitian menunjukkan bawa konsentrasi ekstrak umbi bit berpengaruh sangat nyata terhadap kadar air, vitamin C dan aktivitas antioksidan serta uji deskrpsi aroma, rasa, warna buram, tekstur, dan mouthfeel marshmallow umbi bit. Adapun konsentasi gelatin berengaruh nyata terhadap kadar vitamin C dan uji deskripsi tekstur marshmallow umbi bit. Marshmallow umbi bit memiliki kadar air yaitu sebesar 22,06%, kadar vitmin C 80,67 Mg dan aktivitas antioksidan sebesar 30%.Abstract: Beetroot is one of food that can be used as natural dyes in making of soft candy like marshmallows. This research was conducted using a Completely Randomized Design (CRD) with a factorial pattern consisting of two factors. The first factor is the concentration of beet tuber extract (B) which consists of 3 levels, namely B1 = 5% B2 = 10% and B3 = 15%. The second factor is the concentration of gelatin (G) which consists of 3 levels, namely G1 = 3% G2 = 5% and G3 = 8%. Tests were carried out 3 replications so that 27 trial units were obtained. The results showed that the concentration of coffee extract had a very significant effect on water content, vitamin C and antioxidant activity, as well as the description of aroma, flavor, opaque color, texture, and mouthfeel marshmallow tuber content. The concentration of gelatin significantly affected vitamin C levels and test description of marshmallow tuber tuber texture. Marshmallow beetroot has a water content of 22.06%, vitamin C content of 80.67 Mg and antioxidant activity of 30%.


Pro Food ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 685
Author(s):  
Ni Made Neni Parmiutari ◽  
Eko Basuki ◽  
Rucitra Widyasari

ABSTRACT             This study aims to determine the chemical properties (moisture content, pH and total dissolved solid), physical properties (texture and color) and organoleptics (taste, color, aroma, texture) in the different formulation of slice jam from mixture straw jackfruit and pineapple. This study used a Completely Randomized Design (CRD) with 6 treatments and 3 time replications and analyzed using Analysis of Variance at the 5% level and followed by Least Significant Difference test at the 5% level. These treatments include P0 (100 % pineapple), P1 (80% pineapple: 20% straw jackfruit), P2 (65% pineapple: 35% straw jackfruit), P3 (50% pineapple: 50% straw jackfruit), P4 (35% pineapple: 65% straw jackfruit), dan P5 (20% pineapple: 80% straw jackfruit). Observations made on moisture content, pH, total dissolved solid, texture, color and organoleptic taste, color, texture and aroma (scoring and hedonic). The results showed that the P3 treatment (50% straw jackfruit: 50% pineapple) was the preferred treatment for the panelists on the parameters of color, taste, and texture with the characteristics of moisture content 23.35%, pH 4.86, total dissolved solids 32,46oBrix, L value 44.79 and Hue value 70.67o and brownish yellow color, slightly pineapple taste, chewy texture and pineapple aroma and slightly jackfruit aroma. Keywords: pineapple, slice jam, straw jackfruit ABSTRAK       Penelitian ini bertujuan untuk mengetahui sifat kimia (kadar air, pH dan total padatan terlarut), sifat fisik (tekstur dan warna) dan organoleptik (rasa, warna, aroma, tekstur) pada formulasi selai lembaran dari campuran dami nangka dan buah nanas yang berbeda. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 6 perlakuan dan 3 kali ulangan dan dianalisis menggunakan analisis keragaman (Analysis of Variance) pada taraf 5% dan dilanjutkan dengan uji Beda Nyata Terkecil pada taraf 5%. Perlakuan diantaranya P0 (100 % buah nanas), P1 (80% buah nanas: 20% dami nangka), P2 (65% buah nanas: 35% dami nangka), P3 (50% buah nanas: 50% dami nangka), P4 (35% buah nanas: 65% dami nangka), dan P5 (20% buah nanas: 80% dami nangka). Pengamatan dilakukan terhadap kadar air, pH, total padatan terlarut, tekstur, warna dan organoleptik rasa, warna, tekstur dan aroma (skoring dan hedonik). Hasil penelitian menunjukkan bahwa perlakuan P3 (50% dami nangka : 50% buah nanas) merupakan perlakuan yang agak disukai panelis pada parameter warna, rasa, dan tekstur dengan karakteristik kadar air 23,35%, pH 4,86, total padatan terlarut 32,46oBrix, nilai L 44,79 dan nilai Hue 70,67o serta warna kuning kecokelatan, agak berasa asam nanas, tekstur kenyal dan beraroma nanas dan sedikit beraroma nangka. Kata kunci: buah nanas, dami nangka, selai lembaran


2021 ◽  
Vol 21 (2) ◽  
pp. 374-382
Author(s):  
Suriana Laga ◽  
Saiman Sutanto ◽  
Fatmawati Fatmawati ◽  
Abd. Halik ◽  
Aylee Christine Alamsyah Sheyoputri

Masalah yang sering muncul  pada buah-buahan adalah adalah cepatnya mengalami kerusakan karena proses respirasi dan transpirasi sehingga akan memperpendek umur simpan. Salah satu upaya memperpanjang kesegaran buah Kelengkeng dengan pemakaian Edible Coating.  Penelitian ini bertujuan untuk mengetahui kemampuan Edible Coating sebagai pengemas buah Kelengkeng selama penyimpanan. Perlakuan penelitian terdiri atas aplikasi Edible Coating (Kontrol) dan lama penyimpanan (1 hari, 2 hari, 3 hari, 4 hari, 5 hari dan 6 hari). Parameter yang diamati adalah susut berat, kadar air dan warna. Rancangan percobaan yang digunakan adalah rancangan acak lengkap pola faktorial dengan dua kali ulangan. Pengaruh perlakuan aplikasi Edible Coating dan lama penyimpanan berpengaruh sangat nyata terhadap susut berat, kadar air dan warna buah Kelengkeng. Penggunaan Edible Coating sebagai pelapis mampu mengurangi susut berat buah Kelengkeng, mempertahankan kadar air dan warna buah Kelengkeng selama penyimpanan. The problem that often arises in fruits is that they are quickly damaged due to the respiration and transpiration processes so that they will shorten their shelf life. One of the efforts to extend the freshness of Longan fruit is by using Edible Coating. This study aims to determine the ability of Edible Coating as a packaging for longan fruit during storage. The research treatment consisted of Edible Coating application (Control) and storage time (1 day, 2 days, 3 days, 4 days, 5 days and 6 days). Parameters observed were weight loss, moisture content and color. The experimental design used was a completely randomized design with a factorial pattern with two replications. The effect of Edible Coating application treatment and storage time had a very significant effect on weight loss, moisture content and color of Longan fruit. The use of Edible Coating as a coating is able to reduce the weight loss of longan fruit, maintain water content and color of longan fruit during storage


Pro Food ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 414
Author(s):  
Khurfatul Jannah ◽  
Afe Dwiani ◽  
Suburi Rahman

ABSTRACT Red dragon fruit are a fruit that have a high antioxidants while banana are fruits that have a high carbohydrate and dietary fiber. Fruits are easy to spoil because of their properties are perishable and the way to increase shelf life is by processing it into fruit leather. Fruit leather is a snack that made from fruit and dried so they have a plastic and chewy texture. Besides that, processing fruit can also diversified fruit processing product. The aims of this research was to determine the best combination of red dragon fruit with banana in making fruit leather. The method that used in this study was a completely randomized design (CRD) with a single factor, consisting 5 treatment P1 = dragon fruit 100%: banana 0%; P2 = dragon fruit 75%: banana 25%; P3 = dragon fruit 50%: banana 50%; P4 = dragon fruit 25%: banana 75% and P5 = dragon fruit 0%: banana 100% with 3 times repetitions. The data of the research were analyzed using Analysis of Variance at alpha 5% using SPSS 16 and tested continued using the test of Honest Real Difference (HRD) if there was real difference. The results showed that processing of fruit leather from mixture of red dragon fruit and bananas gave a significantly difference effect on chemical quality (moisture content and vitamin C) but gave not significant effect on ash content. Fruit leather with a mixture of red dragon fruit and banana that suitable with SNI No. 1718-83 for moisture content (<25%) are treatments P1, P4 and P5, respectively 24.24%; 21.8% and 23.30%. The highest vitamin C was produced in treatment P1, which was 84.07 mg/g. Keywords: dragon fruit, fruit leather, bananaABSTRAKBuah naga merah merupakan buah yang memiliki kandungan antioksidan yang tinggi, sedangkan buah pisang merupakan buah yang mengandung karbohidrat dan serat tinggi. Buah mudah mengalami kerusakan dan cara yang digunakan untuk meningkatkan masa simpannya adalah dengan cara mengolahnya menjadi Fruit Leather. Fruit leather merupakan makanan yang berasal dari buah yang dihancurkan dan dikeringkan dengan tekstur plastik dan kenyal serta rasa yang manis. Selain itu pengolahan juga dapat menganekaragamkan produk olahan buah-buahan. Penelitian ini bertujuan untuk mengetahui kombinasi terbaik dari buah naga merah dengan pisang kepok dalam pembuatan fruit leather. Metode yang digunakan dalam penelitian ini adalah rancangan acak lengkap dengan faktor tunggal yaitu konsentrasi buah naga merah dan pisang kepok (P1= buah naga 100%: pisang kepok 0%; P2= buah naga 75%:pisang kepok 25%; P3= buah naga 50%:pisang kepok 50%; P4= buah naga 25%:pisang kepok 75% dan P5= buah naga 0%:pisang kepok 100%) dengan 3 kali ulangan. Parameter yang diamati dalam penelitian ini adalah kadar kimia yang meliputi kadar air, kadar abu dan kadar vitamin C. Data hasil penelitian dianalisis menggunakan analisis keragaman (Analysis of Variance) pada taraf nyata 5% dengan menggunakan SPSS 16 dan apabila terdapat beda nyata dilakukan uji lanjut dengan Uji Beda Nyata Jujur (BNJ). Hasil penelitian menunjukkan bahwa perlakuan penambahan buah naga merah dan pisang kepok berpengaruh terhadap kadar air dan kadar vitamin C. Fruit leather dengan campuran buah naga merah dan pisang kepok yang memenuhi standar SNI No. 1718-83 untuk kadar air (<25%) adalah perlakuan P1, P4 dan P5 berturut-turut sejumlah 24,24%; 21,8% dan 23,30%. Kadar vitamin C tertinggi dihasilkan pada perlakuan P1 yaitu 84,07mg/g.Keywords: fruit leather, buah naga, pisang kepok, air, abu, vitamin C


2017 ◽  
Vol 7 (2) ◽  
pp. 63-71
Author(s):  
Kurnia Herlina Dewi ◽  
Zulman Efendi ◽  
Ida Apri Yanti

The product development effort based on kalamansi aims to extend the shelf life, make the product more durable and increase the added value and fulfill the consumer demand for the practicality in the use. The purpose of this study was Determine the effect of rossela addition to physical and chemical characteristics, determine the effect of rossela addition to organoleptic characteristics. The research design used in this study was Completely Randomized Design (RAL) with treatment of percentage of dry rosella powder: 0%, 2.5%, and 5%, in which each treatment was repeated three repetitions so that nine treatment units were obtained. Parameters observed in water content, solubility rate, pH and organoleptic (flavor, aroma, color). The results showed that the greater percentage of rosella addition, water content, solubility rate and vitamin C were higher, following the equation y = 0,188x + 3,7733 for water content, Y = 6,4x + 37,767 for soluble time . Each addition of rosella occurs a decrease in pH following the equation Y = -0.086x + 4.215. While vitamin C levels follow the equation Y = 5,514x + 16,818. The panelist's preference for the product is good; evidenced by the three tests (aroma, flavor and color) have the highest level of addition of 5% rosella addition. The higher the rosella addition rate ratio the panelist prefers. The panelist's favorite level is at an average of 3 which is quite like.


2018 ◽  
Vol 7 (1) ◽  
pp. 23
Author(s):  
Ni Putu Anita Devi ◽  
Putu Ari Sandhi W ◽  
Ni Made Yusa

The aim of this research is to know the effect of the addition of tamarillo (Solanum betaceum Cav) to marshmallow characteristic, and to determine the addition of the best tamarillo to produce the best characteristic marshmallow. The experimental design used was Completely Randomized Design (RAL) by treatment with fruit pulp tamarillo as follows: 30 %, 40 %, 50 %, 60 %, 70 % and 80 %. Each treatment was repeated three times to obtain 18 experimental units. The results showed that the addition of tamarillo showed significant effect on water content, ash content, total anthocyanin, vitamin C, total sugar, elasticity, color score test, taste score test, texture score test, aroma and overall acceptance and no significant effect on color hedonic test and taste hedonic test. The best characteristic of marshmallow was obtained from the addition of tamarillo of 30 g with water content of 19.44%, ash content of 0.08%, total anthocyanin 0.44 mg / L, vitamin C 8.20 mg / 100g, total sugar 75.15%, elasticity of 1.47 N, color (rather pink and rather like), aroma (rather like), texture (very chewy and like), taste (sweet and rather like), overall acceptance (like).


2021 ◽  
Vol 9 (1) ◽  
pp. 130
Author(s):  
Irfan Fadel ◽  
Ida Ayu Gede Bintang Madrini ◽  
Sumiyati Sumiyati

ABSTRAK Kotoran gajah kaya akan selulosa dan lignin. Kotoran gajah memiliki warna yang bervariasi mulai dari kehijauan hingga kehitaman, tergantung dari makanan yang dikonsumsi (Mathew and Mary 2015). Sementara ini kotoran gajah belum banyak dimanfaatkan Maka dari itu kotoran gajah belum dimanfaatkan secara maksimal. kotoran gajah belum banyak dimanfaatkan secara maksimal. Pengomposan menjadi salah satu pilihan untuk menjadikan kotoran gajah lebih bermanfaat. Tujuan penelitian ini adalah untuk mengetahui pengaruh penambahan bioaktivator EM-4 terhadap suhu, pH, kadar air, ratio C/N, bahan organik yang dihasilkan dan untuk menentukan konsentrasi larutan bioaktivator EM-4 yang menghasilkan kualitas kompos yang terbaik dari kotoran gajah dan sesuai dengan Standar Nasional Indonesia (SNI) 19-7030-2004). Penelitian ini menggunakan Rancangan Acak Lengkap (RAL). Perlakuan dengan menggunakan 50 kg kotoran gajah untuk satu perlakuan dan masing masing konsentrasi EM-4 0 ml (kontrol), 50 ml, 100 ml dan 150 ml. Keempat perlakuan tersebut   dilakukan   pengulangan   sebanyak   2 kali sehingga didapatkan 8 unit percobaan. Parameter pengamatan meliputi suhu kompos, pH, Kadar Air, Bahan Organik, Karbon, Nitrogen,C/N ratio. Hasil pengomposan kotoran gajah dengan larutan EM-4 selama 2 bulan, maka dapat dilihat penambahan larutan EM-4 berpengaruh terhadap suhu, kadar air, ratio C/N dan bahan organik sedangkan pH tidak menunjukkan pengaruh yang signifikan. Pada perlakuan penambahan 150 ml EM-4 pada 50 kg kotoran gajah, suhu mencapai termofilik pada hari ke 28 yaitu 46,1 ?C, ratio C/N 19,63 dan bahan organik 35%. Semua perlakuan memenuhi SNI 19-7030-2004. ABSTRACT Elephant dung is rich in cellulose and lignin. Elephant dung has a color that varies from greenish to blackish, depending on the food consumed (Mathew & Mary, 2015). Meanwhile, elephant dung has not been used much. Therefore, elephant dung has not been fully utilized. elephant dung has not been fully utilized. Composting is an option to make elephant dung more useful. The purpose of this study was to determine the effect of the addition of EM-4 bioactivator on temperature, pH, moisture content, C / N ratio, organic matter produced and to determine the concentration of the EM-4 bioactivator solution which produces the best quality compost from elephant dung and in accordance with Indonesian National Standard (SNI) 19-7030-2004). This study used a completely randomized design (CRD). The treatment used 50 kg of elephant dung for one treatment and each concentration of EM-4 0 ml (control), 50 ml, 100 ml and 150 ml. The four treatments were repeated 2 times in order to obtain 8 experimental units. Observation parameters include compost temperature, pH, moisture content, organic matter, carbon, nitrogen, C / N ratio. The results of composting elephant dung with EM-4 solution for 2 months, it can be seen that the addition of EM-4 solution has an effect on temperature, water content, C / N ratio and organic matter while pH does not show a significant effect. In the treatment of adding 150 ml of EM-4 to 50 kg of elephant manure, the temperature reached thermophilic on day 28, namely 46.1 ?C, C / N ratio 19.63 and 35% organic matter. All treatments comply with SNI 19-7030-2004.


2019 ◽  
Vol 2 (2) ◽  
pp. 37-45
Author(s):  
Evachristina Sihotang ◽  
Indriyani ◽  
Dian Wulansari

Abstract-Sheet jam wasa modification of semi-solid topical jam made from fruits or vegetables, then concentrated with the aimedof forming solids or sheets. Jam generally usedripe fruit that was nottoo ripe and hada slightly sour taste. The purpose of this studyto determine the effect of starfruit and carrotporridge on the characteristics of sheet jam and to get a comparison of starfruit and carrot porridge on the characteristics of sheet jam. This study useda Completely Randomized Design (CRD) with 5 treatments, the comparisonedof starfruit porridgecarrotwere 0%: 100%, 25%: 75%, 50%: 50%, 75%: 25%, and 100%: 0% . Each treatment wasrepeated 3 times to obtain 15 experimental units. The parameterswereobservedin making sheet jam werewater content, vitamin C content, total dissolved solids (TPT), acidity (pH), degree of color, and organoleptic testing. The data obtained were analyzed with a variety of tests at the level of 1% and 5%. If the data obtained hada significant effect, then thedata would be continued withDNMRT (Duncan's New Multiple Range Test) at the 5% level. The researchresultsof starfruit and carrot porridge treatmentto the best sheet jams was 25%:75%with water content (36,53%), vitamin C (44,00 mg / 100 g of material), Total Dissolved Solids (42,20oBrix), pH (4,03), and degree of color (L=33,09, a=+9,31, b=+24,10 and0Hue=68,88). The best parameter of organoleptic testof sheet jam were the texturewassoft, slightly dense (2,92), color wasorange (4,32), plasticitywasnot easily broken (4.24), taste (3,60),overall acceptance (3,64)and aroma(3,60) according to panelists' judgment, which was somewhat preferred.  Keywords-  Carrots; sheet jam; starfruit.


2021 ◽  
Vol 6 (2) ◽  
pp. 112-119
Author(s):  
Dewi Lestari ◽  
Siti Fatimah

The manufacture of Nata de soya uses additional chemicals in Zwavelzure Ammonia (ZA) which functions as a nitrogen source. ZA is dangerous if consumed at the maximum limit, so it needs to be replaced with natural ingredients. Sprout is one of the natural ingredients containing organic nitrogen. This mung bean sprout will be used as a nitrogen source to replace the function of ZA. This study aims to determine the effect of adding green bean extract and sugar as characteristics of Nata de soya. This study is prepared using a completely randomized design (CRD). According to the Standard National Indonesian (SNI), the best test results obtained are 98.76% water content, 12.68% vitamin C, 22.74% yield, 1.1 cm thickness, and less than 4.5% fiber content.ABSTRAKPembuatan nata de soya menggunakan bahan kimia tambahan berupa Zwavelzure Ammoniak (ZA) yang berfungsi sebagai sumber nitrogen. ZA berbahaya jika dikonsumsi dalam batas maksimum sehingga perlu diganti dengan bahan alami. Kecambah adalah salah satu bahan alami yang mengandung nitrogen organik. Kecambah kacang hijau inilah yang akan digunakan sebagai sumber nitrogen untuk menggantikan fungsi dari ZA. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan ekstrak kecambah kacang hijau dan gula sebagai karakteristik nata de soya. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL). Didapat hasil uji terbaik kadar air 98,76%, vitamin c 12,68%, rendemen 22,74%, ketebalan 1,1 cm dan kadar serat kurang dari 4,5% sesuai Standar Nasional Indonesia (SNI).


2018 ◽  
Vol 20 (2) ◽  
pp. 33-39
Author(s):  
Halasan Halasan ◽  
Anandyawati Anandyawati ◽  
Hasanudin Hasanudin ◽  
Riwandi Riwandi

[CHANGE IN SOIL CHEMICAL CHARACTERISTICS AND YIELD OF MAIZE IN AN INCEPTISOL AS AMENDED WITH COMPOST]. Vast area of inceptisol in Indonesia is a potential natural resource for improving the domestic maize production. The amendment of organic material is expected to make correction on the fertility problem inherent in the soil. Objective of this study was to determine the optimum dose of compost for some soil chemical properties and maize performances. The doses of compost consisted of 0, 2.5, 5, 7.5, 10, and 12.5 ton/haa were allotted randomly on the experimental plots according to completely randomized design with three replications. Observations were made on  the exchangeable Aluminum (Al-dd), pH, organic carbon, water content, plant height, unhusked and husked ear weight, and grain yield. Analysis of variance showed that the dose of compost had significant (P?0.05) effects on pH and C-organic in soil. Giving compost at a dose about 12.5 ton/ha could increase the pH about 4.9, whereas giving compost at a dose about 10 tonha-1 could increase C-organic about 3.09 %. In other hand, the giving of compost with various dose did not give significantly (P>0.05) affect towards  Aluminium (Al-dd), pH, C-organic, water content, height of plants, weight of without husk, weight of cob with husk, weight of dry corn beans. The highest grain yield (2,415.75 kg/ha) was observed on compost applied at  dose  12.5 ton/ha.


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