scholarly journals PENGARUH PENAMBAHAN CARBOXY METHYLCELLULOSE DAN WAKTU PEMASAKAN TERHADAP MUTU SELAI NANAS

2019 ◽  
Vol 44 (2) ◽  
pp. 121
Author(s):  
Naomi Uli Arta Siagian ◽  
Abdul Rahim ◽  
Baharuddin Baharuddin ◽  
Ifall Ifall
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Ash Content ◽  
Cooking Time ◽  
Factorial Experiments ◽  
Total Acid ◽  
Randomized Block Design ◽  
Concentration Factors ◽  
Hedonic Scale

Pineapple Jam Quality Quality is determined by CMC concentration factors and cooking time. This study aims to study the effect of the addition of CMC and the length of cooking on the quality of pineapple jam so that it can be accepted by consumers. This research was conducted at the Laboratory of Processing, Faculty of Agriculture, Alkhairaat University Palu and Agro-Industry Laboratory, Faculty of Agriculture, University of Tadulako Palu. This research was conducted using factorial experiments arranged in a Randomized Block Design with three replications. The first factor of CMC concentration consisted of treatments C1 = 0.5%, C2 = 1.0%, and C3 = 1.5%. The second factor is the length of cooking, namely drying T1 = 20 minutes, T2 = 25 minutes and T = 30 minutes. The data obtained were analyzed by variance, followed by the BNJ test at the 0.05% level with the parameters of the test of amendment, moisture content, ash content, dietary fiber content, vitamin C, total acid content, and organoleptic test. The results showed that the best combination was found in 0.5% CMC concentration with 20 minutes cooking time. The treatment characteristics of 0.5% CMC concentrations with a cooking duration of 20 minutes resulted in better pineapple jams including water content (46.60%), ash content (0.86%), vitamin C (14.30%), and organoleptic levels the best for the aroma of pineapple jam on the treatment of 0.5% CMC concentration with a cooking duration of 20 minutes obtained the highest panelist assessment score of (4.72) with the "very like" hedonic scale.

scholarly journals STUDI PEMBUATAN PERMEN JELLY DARI KOMBINASI NANAS (Ananas comosus L.) DAN JERUK SAMBAL (Citrus microcarpa)

Pro Food ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 749
Author(s):  
Eva Mayasari ◽  
Tri Rahayuni ◽  
Nurul Erfiana
Keyword(s):  
Vitamin C ◽  
Moisture Content ◽  
Block Design ◽  
Food Product ◽  
Ash Content ◽  
National Standard ◽  
Ananas Comosus ◽  
Average Score ◽  
Randomized Block Design

ABSTRACT   Jelly candy from combination of pineapple (Ananas comosus L.) and calamansi (Citrus microcarpa) is an alternative food product. The aim this study is to provide the best quality of jelly candy from the combination of pineapple and calamansi juices. This study used Randomized Block Design with one factor was combination of pineapple : calamansi consisting of 6 levels are 100:0%, 90:10%, 80:20%, 70:30%, 60:40%, 50:50%. Each treatment replicated 4 times therefore obtained  24 samples combination. The combination of 80% pineapple and 20% calamansi is the best treatment with a mean of moisture content 19,34%, ash content 0,30%, vitamin C 15,97mg/100G, total dissolved solids 24,500brix, pH 3,29, hardness level 0,05 kG force, the average score of the panelists preference the taste, appearance, and aroma has like (5,04), like (5,28), like (5,12), respectively. Moisture and ash content are in the levels of jelly candy qualify according to National Standard of Indonesia (SNI: 02-3547-2008), i.e., maximum moisture content of 20,0% and a maximum ash content of 3,0%.   Keywords: pineapple, calamansi, combination, jelly candy, fruit juice.   ABSTRAK   Permen jelly dari penambahan kombinasi nanas (Ananas comosus L.) dan jeruk sambal (Citrus microcarpa) merupakan salah satu alternatif produk pangan. Penelitian ini bertujuan untuk mendapatkan karakteristik terbaik permen jelly dari kombinasi sari buah nanas dan jeruk sambal. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 1 faktor perlakuan terdiri dari 6 taraf yaitu kombinasi sari buah nanas dan jeruk sambal terdiri dari 100:0%, 90:10%, 80:20%, 70:30%, 60:40%, 50:50%. Setiap perlakuan diulang sebanyak 4 kali sehingga diperoleh 24 sampel kombinasi. Kombinasi 80% nanas dan 20% jeruk sambal merupakan perlakuan terbaik berdasakan kadar air sebesar 19,34%, kadar abu sebesar 0,30%, vitamin C sebesar 15,97 mG/100G, total padatan terlarut sebesar 24,500brix, pH sebesar 3,29, tingkat kekerasan sebesar 0,05 kG force. Rerata skor kesukaan panelis terhadap rasa, warna, dan aroma berturut-turut adalah menyukai (5,04), menyukai (5,28), menyukai (5,12). Kadar air dan kadar abu permen jelly yang dihasilkan memenuhi syarat mutu SNI 02-3547-2008, yaitu kadar air maksimal 20,0% dan kadar abu maksimal 3,0%.   Kata Kunci : nanas, jeruk sambal, kombinasi, permen jelly, sari buah.

scholarly journals PEMANFAATAN EKSTRAK BELIMBING WULUH DAN EKSTRAK KULIT BUAH NAGA DALAM PEMBUATAN SELAI

2021 ◽  
Vol 8 (2) ◽  
pp. 62
Author(s):  
Nurul Aini ◽  
Dody Handito ◽  
Siska Cicilia
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Block Design ◽  
Fruit Peel ◽  
Significance Level ◽  
Randomized Block Design ◽  
Dragon Fruit ◽  
Significant Difference ◽  
Sensory Tests

This study aims to determine the concentration of starfruit juice and dragon fruit peel on the quality of jam. The experimental design used was a one-factor Randomized Block Design (RAK) with six treatments and three replications to obtain 18 samples. The treatments were the concentration of starfruit juice and dragon fruit peel extract with P1 (100% : 0%), P2 (85% : 15%), P3 (70% : 15%), P4 (55% : 45%), P5 ( 40% : 60%) and P6 (25% : 75%). Parameters observed were vitamin C levels, antioxidant activity, spread, and color as well as sensory tests (color, aroma, and taste). Data analysis results were tested by analysis of variance at a significance level of 5% using Co-Stat software. If there is a significant difference, then the orthogonal polynomial further test is carried out, while the physical and sensory tests are further tested using the Honest Significant Difference test at a significance level of 5%. The results showed that the concentration of star fruit juice and dragon fruit pulp did not have a different effect on vitamin C levels but had a significantly different effect on antioxidant activity, spread, and color. P6 treatment resulted in the highest antioxidant activity of 77.27%, 12.80 mg of vitamin C content, 10.1 cm of smearing power, and sensory properties that were acceptable to the panelists.

scholarly journals Production and quality of okra produced with mineral and organic fertilization

2019 ◽  
Vol 23 (2) ◽  
pp. 97-102
Author(s):  
Hemmannuella C. Santos ◽  
Emmanuel M. Pereira ◽  
Rafael L. S. de Medeiros ◽  
Paulo M. de A. Costa ◽  
Walter E. Pereira
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Organic Fertilization ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
The Mean ◽  
Organic Compost

ABSTRACT Okra, Abelmoschus esculentus (L.) Moench, is a vegetable with annual fruit native to hot regions of Africa, well adapted to the conditions of the Northeast and Southeast regions of Brazil, where it is widely used by small farmers. This study aimed to evaluate the effect of mineral and organic fertilization on the production and quality of okra fruits. The experiment was conducted in randomized block design, with three replicates and eleven treatments defined according to a Baconian matrix. Treatments consisted of doses of N (0, 100, 200 and 300 kg ha-1), P (0, 100, 200 and 300 kg ha-1) and K (0, 80, 160 and 240 kg ha-1), as well as absence and presence of organic compost (30 t ha-1). The following parameters were evaluated: plant height, stem diameter, number of leaves, production of fruits plant-1, number of fruits plant-1, fruit length and diameter and fruit quality (pH, soluble solids, titratable acidity, vitamin C and electrical conductivity). The crop is demanding in terms of K and N fertilizations, with increments of 15.8 and 36% in the mean number and diameter of fruits, respectively. Organic fertilization did not influence the vegetative growth of okra, but was beneficial to the production of fruits with higher vitamin C content, 52% higher than the contents found in fruits produced without such input.

scholarly journals Effect of Ratio of Moringa Leaves Juice with Pineapple Juice and Arabic Gum on the Quality of Jelly Candy

2018 ◽  
Vol 1 (2) ◽  
pp. 162-171 ◽  
Author(s):  
Carly Purba ◽  
Hotnida Sinaga ◽  
Mimi Nurminah
Keyword(s):  
Vitamin C ◽  
Ash Content ◽  
Total Acid ◽  
Arabic Gum ◽  
Pineapple Juice ◽  
Randomized Design ◽  
Two Factors ◽  
Soluble Solid ◽  
Completely Randomized Design

The purpose of this research was to determine the effect of ratio of moringa leaves juice with pineapple juice and the best percentage of arabic gum on the quality of jelly candy. This research was using completely randomized design with two factors, i.e. : ratio of moringa leaves juice with pineapple juice (K): (100%:0% ; 75%:25% ; 50%:50% ; 25%:75% ; 0%:100%) and arabic gum percentage (G): (1,0% ; 1,5% ; 2,0%). Parameters analyzed were moisture content, ash content, vitamin C content, total soluble solid, total acid, lightness value (L*), hedonic organoleptic values of colour, flavour, taste, texture and score organoleptic values of colour and texture. The results showed that the ratio of of moringa leaves juice with pineapple juice had highly significant effect on ash content, vitamin C content, total acid, lightness value, hedonic organoleptic test of colour, flavour, taste and score organoleptic value of colour. The ratio of  moringa leaves juice with pineapple juice (25%:75%) and 2,0% arabic gum percentage produces the best quality of jelly candy based on hedonic organoleptic values of colour, flavour, taste, texture and score organoleptic values of colour and texture.

scholarly journals Pengaruh Pemangkasan Tajuk Terhadap Produktivitas dan Mutu Buah Jeruk Keprok Pulung (Effect of Pruning Canopy on Productivity and Fruit Quality of Mandarin cv Pulung)

2020 ◽  
Vol 29 (2) ◽  
pp. 199
Author(s):  
Agus Sugiyatno ◽  
NFN Yenni ◽  
Buyung Al Fanshuri
Keyword(s):  
Water Content ◽  
Fruit Quality ◽  
Maintenance Treatment ◽  
Block Design ◽  
Total Sugar ◽  
Total Acid ◽  
Randomized Block Design ◽  
The Mean ◽  
Fruit Diameter

<p>Pemangkasan merupakan tindakan dalam budidaya tanaman yang berperan penting dalam mengatur percabangan tanaman. Tujuan penelitian ini adalah untuk mengetahui pengaruh pemangkasan tajuk tanaman terhadap produktivitas dan mutu buah jeruk keprok Pulung. Penelitian dilaksanakan pada bulan Agustus 2015 – Agustus 2016 di Kebun Percobaan (KP) Tlekung Balai Penelitian Tanaman Jeruk dan Buah Subtropika (Balitjestro) pada tanaman jeruk keprok Pulung berumur 6 tahun. Penelitian berdasarkan Rancang Acak Kelompok (RAK) dengan lima perlakuan, yaitu pemangkasan pemeliharaan (P), pemangkasan bentuk V (V), pemangkasan lorong (L), pemangkasan samping (S), dan tidak dipangkas (K). Setiap perlakuan diulang lima kali dengan sembilan unit tanaman per ulangan. Hasil penelitian menunjukkan bahwa jumlah bunga tertinggi diperoleh pada perlakuan pemangkasan bentuk V (V), yaitu 85,30%, jumlah buah tertinggi pada perlakuan pemangkasan bentuk V (V) dan perlakuan pemangkasan samping (S) masing-masing sebesar 208,8 buah/pohon dan 201 buah/pohon. Rerata diameter dan bobot buah tertinggi diperoleh pada perlakuan pemangkasan pemeliharaan (P), yaitu 66,20 mm dan 143,75 g. Dari hasil analisis buah jeruk, total gula tertinggi (7,5%) dan total asam terendah (1,79%) diperoleh pada tanaman yang diperlakukan pemangkasan samping (S), sedangkan total karotenoid tertinggi (10,63 µg/g) terdapat pada tanaman yang diperlakukan pemangkasan lorong (L) dan kadar air yang tertinggi sebesar 90,08% dimiliki oleh tanaman kontrol (tanpa pemangkasan). Perlakuan pemangkasan samping (S) dapat direkomendasikan untuk diterapkan di petani karena menghasilkan jumlah buah yang tinggi dengan rasa yang manis.</p><p><strong>Keywords</strong></p><p>Jeruk; Kanopi; Pemangkasan; Produktifitas; Mutu buah</p><p><strong>Abstract</strong></p><p>Pruning plays an important role in regulating branching of fruit plants. This research was aimed to examine the effect of canopy pruning on productivity and fruit quality of mandarin cv Pulung. The study was conducted at the Experimental Farm Tlekung ICSFRI on 6 year old tree of mandarin cv. Pulung. The observation was carried out from August 2015 until August 2016. The study was analyzed by using a Randomized Block Design (RBD) with five treatments and five replicates. The treatments were consisted of pruning for maintenance (P), V shape pruning (V), alley shape pruning (L), side pruning (S), and unpruning (K). The results indicate that the highest number of flowers is shown by V shape pruning treatment (V) i.e. 85.30%, the highest number of fruits is performed by V shape pruning treatment (V) and side pruning treatment (S), with the average of 208.8 and 201 fruits per tree. The mean fruit diameter and weight is the highest in pruning for maintenance treatment (P), i.e. 66.20 mm and 143.75 g, respectively. The highest total sugar (7.5%) and lowest total acid (1.79%) were obtained in the side pruning treatment (S), while the highest total caratenoid (10.63 µg / g) was found in the alley pruning treatment (L) and the highest water content of 90.08% is owned by the control (unpruning). Results of the study suggest that side pruning treatment (S) can be recommended as the best pruning practice to farmers since it may produce highest number of fruits and sweetest taste.</p>

scholarly journals Analisa Kimia Bakpia Kering Substitusi Tepung Kulit Buah Naga

2020 ◽  
Vol 13 (01) ◽  
pp. 15-23
Author(s):  
Amelia Nirmalawaty ◽  
Anak Agung Putu Sri Mahayani
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Block Design ◽  
High Heat ◽  
Ash Content ◽  
Randomized Block Design ◽  
Dragon Fruit ◽  
Carbohydrate Levels ◽  
And Control ◽  
Sufficient Food

The potential of red dragon fruit peels both in terms of antioxidant activity and as sufficient food coloring promising. On the other hand antioxidants, one of which is vitamin C, is very susceptible to high heat.  This study aims to determine the content of proximate, fiber and vitamin C from dry bakpia substitution of  dragon fruit peels flour. A randomized block design with 4 replications was selected in this study, while the treatment consisted from 3 levels of dragon fruit peels flour substitution, namely 1%, 2%, 3% and control (0%). The results showed substitution of dragon fruit peels flour has no effect on water content, protein, fat, fiber and vitamin C dry bakpia. The 3% substitution of dragon fruit peels flour produces lower carbohydrate levels and significantly different with control, 1% and 2%.  The ash content of 3% substitution of dragon fruit peels flour is higher and than significantly different with control and 1% but not significantly different with 2% . The conclusion was  substitution of dragon fruit peels flour can be applied to 1- 2% of  flour need to increase its nutritional value.   Keywords: dragon fruit peels flour, dried bakpia, proximate, fiber, vitamin C

scholarly journals STUDY ON ASCORBIC ACID FOR FORTIFICATIONOF RICE CASSAVA

2017 ◽  
Vol 7 (2) ◽  
pp. 72-83
Author(s):  
Harun Al-Rasyid ◽  
Subeki Subeki ◽  
Wisnu Satyajaya ◽  
Agus Saptomi
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Water Content ◽  
Analysis Of Variance ◽  
Block Design ◽  
Factorial Experiment ◽  
Randomized Block Design ◽  
Two Factors ◽  
Agricultural Materials

Siger rice is an analog rice made from agricultural materials containing carbohydrates such as cassava. The purpose of this research was to know the effect of addition of ascorbic acid and steam duration to the quality of siger rice from cassava. The factorial experiment arranged in a Complete Randomized Block Design (CBRD) with two factors and three replications.. The first factor was the addition of ascorbic acid is 0% (A1), 0.1% (A2), 0.15% (A3), 0.2% (A4), 0.25% (A5), and 0.3% A6). The second factor was steam duration of 25 minutes (L1), 30 minutes (L2), and 35 minutes (L3). The data were analyzed using analysis of variance (ANNOVA) and continued with Least Significance Different (LSD) test. The results showed that the addition of ascorbic acid 0.2% with steaming for 35 minutes resulted in the best quality of siger rice with white color tending, somewhat similar to rice, rather soft, water content of 10.62%, 0.88% ash, protein 3,82%, fat 2.42%, crude fiber 1.13%, carbohydrates 81.12%, and vitamin C 0.61 mg/g.

scholarly journals APLIKASI TEKNOLOGI BUDIDAYA RAMAH LINGKUNGAN TERHADAP KUALITAS BUAH STROBERI

EUGENIA ◽  
2017 ◽  
Vol 23 (1) ◽  
Author(s):  
Bertje R.A. Sumayku ◽  
Tatik Wardiyati ◽  
Aminudin Afandhi ◽  
Jeanny Polii-Mandang
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Sugar Content ◽  
Chicken Manure ◽  
Test Statistics ◽  
Treatment Technology ◽  
Environment Friendly ◽  
Randomized Block Design ◽  
Cultivation Technology

ABSTRACT   This study aimed to compare the application of environment-friendly cultivation technology on the quality of strawberries. The experimental design using a factorial in a randomized block design (RAK), with 2 factors, namely: 1). Farmers treatment technology that chicken manure 20 t / ha + Urine Rabbits 1: 5 liters of water; 2). Treatment T. koningii 15 g / kg of soil in chicken manure 5 tons / ha). Data were analyzed by t test statistics, if different continued with test Duncun at 0.05. Research results show that treatment of PP (T. koningii Technology) has Vitamin C is 27.1 mg / 100g, higher than the Treatment PT (Technology Farmers) is 22.5 mg / 100g. The vitamin C content of the variables were not significantly different between treatments, while the variable texture of the fruit, and sugar content were significantly different. Keywords: applications agriculture environmentally-friendly, strawberry fruit quality

scholarly journals Mass and nutritional quality of upper and lower strata of tropical forages

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2725
Author(s):  
Mailson Poczynek ◽  
Mikael Neumann ◽  
Egon Henrique Horst ◽  
Bruno José Venancio ◽  
Danúbia Nogueira Figueira ◽  
...  
Keyword(s):  
Nutritional Quality ◽  
Block Design ◽  
Growth Dynamics ◽  
Ash Content ◽  
Perennial Grasses ◽  
Chemical Characteristics ◽  
High Productivity ◽  
Randomized Block Design ◽  
Dry Biomass

The goal of this work was to evaluate the growth dynamics and chemical characteristics of the upper and lower strata of summer perennial grasses under a four cuts system. The experiment was conducted in a randomized block design, composed of 28 treatments in a factorial arrangement of 7x4, with four repetitions. The cultivars evaluated were Star Grass, Coast-cross, Tifton 68, Tifton 85, Jiggs, Roxinha and Quicuio. Each cultivar was cut when it reached 95% light interception. The cultivars Jiggs and Tifton 68 had the highest (P &lt; 0.05) accumulation of dry biomass ha-1 during the four cuts, with productions of 21,348 and 21,016 kg ha-1, respectively. The ash content varied (P &lt; 0.05) among species and times of cutting for both strata. Cellulose contents were significantly different in the upper stratum, with the highest concentrations found in cvs. Quicuio and Tifton 68 (39.12% and 38.07%, respectively). We found the highest levels of lignin (P &lt; 0.05), for both strata, in cv. Quicuio. Cultivars Jiggs and Tifton 68 were the most appropriate for a management system of four cuts, displaying good chemical composition and high productivity.

scholarly journals The Effect of Concentration of Beeswax Emulsion on Shelf Life and Quality of Beetroot (Beta vulgaris L.) during Room Temperature Storage

2022 ◽  
Vol 6 (6) ◽  
Author(s):  
Vera Handi Pratiwi ◽  
Yoga Aji Handoko
Keyword(s):  
Vitamin C ◽  
Shelf Life ◽  
Beta Vulgaris ◽  
Block Design ◽  
Christian University ◽  
Randomized Block Design ◽  
Horticultural Products ◽  
High Level ◽  
Temperature Storage

Beetroot (Beta vulgaris L.) is one of the horticultural products that have the potential for development in Indonesia. beetroot contains a high level of betalain and vitamin C, so it can be an antioxidant for cancer. But nowadays, post-harvest handling is not specially noticed by people yet. The aims of this research were to determine the effect of beeswax coating on shelf life and quality of the beetroot and determine the best wax emulsion concentration as beetroot coating. This research was conducted at the Posharvesting Handling Laboratory of the Faculty of Agriculture and Business, Satya Wacana Christian University, Salatiga. The method used Randomized Block Design with 4 treatments and 6 replications. The concentration of beeswax emulsions used in this research is about 4%, 8%, and 12%. The observed parameter was weight loss, respiration, total dissolved solids, water content, and vitamin C. The results show that the treatment with a concentration of 12% of beeswax emulsion is the best result when compared with other treatments. The result also shows the concentration of 12% beeswax emulsion can maintain the storage time and quality of the beetroot. 

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