scholarly journals Aplikasi Antioksidan dari Ekstrak Lamun (Cymodocea rotundata) pada Minyak Ikan Tongkol (Euthynnus affinis)

2017 ◽  
Vol 37 (2) ◽  
pp. 115 ◽  
Author(s):  
Amalia Rahmi Puspasari ◽  
Eko Nurcahya Dewi ◽  
Laras Rianingsih

Cymodocea rotundata is a seagrass, has a potential antioxidant capacity due to have flavonoid and phenolic compounds that could prevent free radicals. This research aimed was to determine the effect of different concentrations of seagrass extracts on the value of free fatty acids (FFA), peroxide value (PV), and thiobarbituric acid (TBA) during storage at room temperature. The material used in this study was swordfish which were processed into fish oil. The research was conduct through laboratory experiments using a completely randomized design (CRD) which to evaluate the effect of seagrass extract concentrations (0%, 0.1%, 0.2%, and 0.3%) and storage time (days 0 and 5) on the oil quality. The results showed FFA values ranged from 0 to 27.477%, PV value between 0 to 46.737 mEq/kg, and TBA values ranged from 3.310 to 8.731 malonaldehyde. Based on the results of the study showed that the interaction between seagrass C. rotundata extract concentration and storage time was significantly (p < 0.05) influence the value of FFA, PV, and TBA. ABSTRAKCymodocea rotundata adalah spesies lamun yang mengandung senyawa flavonoid dan fenolik sehingga diharapkan mampu mencegah terjadinya oksidasi lemak melalui penghambatan pembentukan radikal bebas. Penelitian ini bertujuan mengetahui efek konsentrasi ekstrak lamun yang berbeda terhadap nilai free fatty acid (FFA), peroxide value (PV), dan thiobarbituric acid (TBA) selama penyimpanan suhu ruang. Materi yang dipergunakan adalah ikan tongkol dengan kisaran panjang 40 ± 1 cm dan berat sekitar 1 kg/ekor yang diolah menjadi minyak ikan. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) pola faktorial untuk mengetahui pengaruh konsentrasi ekstrak lamun (0%; 0,1%; 0,2%; dan 0,3%) dan lama penyimpanan (hari ke-0 dan hari ke-5) pada suhu ruang terhadap kualitas minyak ikan. Hasil penelitian menunjukkan nilai FFA berkisar antara 0-27,477%, nilai PV berkisar antara 0-46,737 mEq/kg, dan nilai TBA berkisar antara 3,310-8,731 malonaldehid. Studi ini menunjukkan interaksi antara konsentrasi ekstrak lamun dan waktu penyimpanan sangat berpengaruh (p < 0,05) terhadap nilai FFA, PV, dan TBA.

Food Research ◽  
2021 ◽  
Vol 5 (S2) ◽  
pp. 113-119
Author(s):  
W. Swastike ◽  
E. Suryanto ◽  
Rusman ◽  
C. Hanim ◽  
Jamhari ◽  
...  

This research was aimed to determine the quality properties, the microstructure of chicken sausage and Thiobarbituric acid (TBA) values with locally Indonesia red beetroot powder. The main ingredients of chicken sausage-making in this research were broiler chicken, filler, binder, beetroot powder, and spices. Red beetroot powder function as a filler was substituted tapioca starch in chicken sausage batter in three different levels. The combination of red beetroot powder with level 0, 1.0, 2.0 and 3.0% of total batter and shelf life at room temperature for 0, 1, 2 and 3 days. Each treatment consisted of five replications. The variables observed using quality properties (moisture, ash, fat, protein, crude fiber and calorie), microstructure and peroxide value of chicken sausage. The data of quality properties and peroxide value were analyzed by using one-way analysis (ANOVA) of Completely Randomized Design. The differences between means were analyzed by Duncan's New Multiple Ranges Test. The data of microstructure was analyzed by descriptive analyses. The moisture, protein, fat and ash contents for chicken sausages were significantly different (p<0.05). The chicken sausage with 2% substitution of beet powder produced chicken sausages with a high protein content of 14.77±0.02% while a low-fat content is 0.42±0.01%. Thiobarbituric acid (TBA) values of chicken sausages increased throughout the three days of room temperature storage (38°C). Chicken sausage formulated with red beetroot powder showed a significantly lower TBA value compared to the samples without red beetroot powder (p<0.05). In conclusion, a higher level of beetroot powder will improve the quality of chicken sausage and also the microstructure. The best level of beetroot powder addition was 2.0%. The addition of beetroot powder able to maintain fresh sausage conditions up to 2 days of storage at room temperature.


Author(s):  
Agnes A Patty ◽  
Pamela Papilaya ◽  
Prelly Tuapattinaya

Background: The purpose of this study was to determine whether there is influence of temperature and storage time to vitamin A and vitamin C content in gandaria. Method: This study was an experimental study using Completely Randomized Design (RAL), with a combination of cold and room temperature treatments and storage duration (1, 4, 7, and 10 days). Each treatment was repeated three times. The parameters observed were vitamin A and vitamin C content of gandaria. Analysis of vitamin A and C content using UV-Vis Spectrophotometric method. The data obtained were analyzed with ANOVA and continued with Duncan Test. Results: The results showed that temperature and storage time had an effect on vitamin A and vitamin C content of gandaria. The highest decrease in vitamin A content was found in storage at room temperature for 10 days that was 21.69%, while in cold temperature only 15.36%. The content of vitamin C in gandaria stored at room temperature for 10 days decreased 35.05%, while in cold temperature only 21.03%. Conclusion: The longer the storage and the high temperature, the levels of vitamin A and vitamin C decreases.


2020 ◽  
Vol 9 (1) ◽  
pp. 71
Author(s):  
Yemima Maria Lasmaroha Sitompul ◽  
I Made Sugitha ◽  
Agus Selamet Duniaji

This study aims to find out the effect of immersion time in wuluh starfruit juice (Averrhoa bilimbi) and storage time of characteristics mackarel tuna fish (Euthynnus affinis), as well as to determine the right time of immersion in wuluh starfruit juice and storage time to produce mackarel tuna fish with still acceptable characteristics. The experimental design used in this study was a Completely Randomized Design with 5 level immersion treatments, namely: 0 minutes, 2 minutes, 4 minutes, 6 minutes, and 8 minutes, with the observation time in the 3 and 6 hour. The treatment was repeated 2 times to obtain 20 experimental units. The data obtained were analyzed by variance and if the treatment had an effect on the observed variables then it was continued with the Duncan test. The results of the study with duration of immersion time that produced with still acceptable mackarel tuna fish products was 4 minutes at the time of observation of the 6 hour the water content is 71,5%, the acidity was 5.35, the microbial total was 4,28 log cfu/g or 1.9x104 cfu/g, and the total volatile base was 21,57 mg N / 100g which was low and the score of color, smell, texture and scales, the eyes, gills, and body surface mucus can be accepted by the panelists as well as overall acceptance that was preferred. Keywords : mackarel tuna fish, wuluh starfruit, immersion time, storage time, total volatil base


2021 ◽  
Vol 9 (3) ◽  
pp. 151-157
Author(s):  
A. Apriantini ◽  
S. Adinata ◽  
Y. C. Endrawati

Duck meat is a perishable food that has a short shelf-life. Therefore, packaging is needed to be used tomaintain duck meat quality during storage, one of the ways to extend shelf-life of duck meat is usingpropolis extract as edible coating which is contained antioxidant substances which can be used to extendduring storage. The aim of this research was to analyze the effect of propolis extract as an edible coatingmaterial on duck meat to maintain the quality and extend shelf-life of duck meat at room temperature.The research was used a completely randomized design (CRD) factorial 4x3 with 3 replications,consisting of 4 propolis concentrations (0.0%, 0.5%, 1.0%, 1.5%) and 3 storage times (0 hours, 6 hoursand 24 hours). Duck meats coated with propolis extracts had a significant effect on the water content andantioxidant activity of duck meat (P < 0.05). The storage time had a significant effect on the pH valueand the cooking loss of duck meat (P <0.05). The addition of propolis extract and storage time had asignificant effect on the pH value, cooking loss and antioxidant activity of duck meat (P <0.05).


Author(s):  
Febiasasti Trias Nugraheni ◽  
Erma Prihastanti ◽  
Endah Dwi Hastuti

Garlic (Allium sativum L.) is an agricultural commodity which is widely consumed by the community. The obstacle experienced in cultivation is that a relatively long dormancy period of about 6-7 months. The dormancy of garlic seeds occurs because the embryo has not yet been fully formed, and the growth hormone and inhibitory hormone are not balanced. The methods used to break dormancy and accelerate germination are by using corona incandescent plasma radiation and storage temperature. The research utilized factorial Completely Randomized Design (CRD), consisting of six treatments with five replications. The first factor was the corona incandescent plasma radiation carried out on the garlic seeds ‘Lumbu Kuning’ variety with time duration of 0, 15, and 30 minutes. The second factor was storage temperature comprising of room temperature and cold temperature of 7oC stored for 30 days. Viability parameters observed are germination percentage dan the length of sprouts. The data were analyzed by using ANOVA followed by the DMRT test at the 95% confidence level. The results showed that corona incandescent plasma radiation influenced the germination percentage using plasma radiation for 15- 30 minutes.


2018 ◽  
Vol 5 (2) ◽  
pp. 249
Author(s):  
N. Putri Sumaryani ◽  
Anak Agung Istri Mirah Dharmadewi

This study was conducted to determine the temperature and storage time of the exact vitamin C content of red and white dragon fruit and the difference of vitamin C. The samples were taken from the plantation land in Ubud Andong Highway, Petulu, Gianyar Regency. Treated for 10 and 30 days with 2, 10, 20 and 300C temperature treatment with five repetitions using Completely Randomized Design Factorial pattern. Data obtained statistically using ANOVA (Analysis of Variance). The highest vitamin C content in red dragon fruit is 29.61 mg/ 100g temperature 100C for 10 days and the lowest is in 30 days storage with temperature 300C that is equal to 22,09 mg/ 100g. While the white dragon fruit content of vitamin C highest contained in storage with a temperature of 20C is 22.69 mg/ 100g with maximum storage of 10 days and the lowest at a temperature of 300C is 17.37 mg/ 100g.


2017 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Zainal Berlian ◽  
Elfira Rosa Pane ◽  
Sri Hartati

The use of formalin increasingly widely circulated among sellers tahu, because nature tahu easily broken then the sellers know much use out using formalin. Turmeric has active compounds that issaponin. It can be used to minimize the presence of formaldehyde in tahu This study used tahu immersed in 5% formalin solution added a solution of turmeric. The research carried on in the Laboratory of the Polytechnic Palembang Health Nutrition Department. Determination of formaldehyde using a spectrophotometer test. The study used a completely randomized design (CRD) with a model of Factorial three factors, namely soaking treatment (60 minutes, 75 minutes, 90 minutes) giving a solution of Turmeric (0 %, 10 %, 15 %, 20 %) and storage factor (0, 24, 48, 72 hours). The parameters used are formaldehyde levels and organoleptic test. These results indicate that treatment of soaking time did not significantly affect the levels of formaldehyde in tahu that F count -0.022 smaller than F table 6.94. Treatment addition of turmeric solution concentration does not significantly affect the levels of formaldehyde at 0.864 tahu that F count is smaller than F table 3.16. The storage time treatment also did not significantly affect the levels of formaldehyde in tahu that F count -11.16 smaller than 2.73. However, the interaction between the immersion treatment, turmeric solution concentration and storage time significantly affect the levels of formaldehyde in the tahu, namely 282.16 F count larger than F table 1.75. And the results of organoleptic able to change the texture of aroma and color in tahu with decreasing levels of formaldehyde in tahu. In this study, formaldehyde levels lowest in 90 minutes soaking treatment, the concentration of 20 % deposit 72 hours .


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


2010 ◽  
Vol 8 (2) ◽  
pp. 58-65
Author(s):  
VENERANDA SONYA AYU ◽  
ESTU RETNANINGTYAS NUGRAHENI ◽  
TJAHJADI PURWOKO

Ayu VS, Nugraheni ER, Purwoko T. 2010. The effect of ethanol extracts concentration of mengkudu fruit (Morinda citrifolia) and storage time toward Euthynnus affinis meat quality. Biofarmasi 8: 58-65. High protein content in fish and the storage in a relatively short time will encourage the growth of bacteria. Therefore, the preservation techniques are required to expand the fish store. The use of formalin as a preservative substance, especially for fish, can damage to health, so it is necessary to find out the preservative substance as an alternative to substitute formalin. Mengkudu fruit (Morinda citrifolia L.) contains compounds that have an antibacterial activity, such as alkaloids and flavonoids. The purposes of this study were to determine the effect of ethanol extract concentration of mengkudu fruit and the storage time on the number of bacteria in Euthynnus affinis meat, and the concentration which have the same activity with formalin in inhibiting the number of bacteria in E. affinis meat. This research used a completely randomized design. The tested sample was Euthynnus affinis meat that soaked in ethanol extract of mengkudu fruit with concentrations between 10-100%. Every four hours, the TPC test, the water content, pH value and temperature of samples were measured. The results of observation were analyzed by ANOVA, further the results that significantly different were followed by a DMRT test with 95% confidence level. Based on the statistical analysis, the concentration of ethanol extract of mengkudu fruit and the storage time were significantly (p<0.05) in inhibiting the number of bacteria in Euthynnus affinis meat. The concentrations of extracts 80%, 90% and 100% had almost same activity to formalin in inhibiting the number of bacteria in Euthynnus affinis meat.


2017 ◽  
Vol 20 (3) ◽  
pp. 592 ◽  
Author(s):  
Christine Fransin Mamuaja ◽  
Frans Lumoindong

Kluwek seeds contain antimicrobial compounds that can be categorized as preservative agents. The<br />main objective of this study was to evaluate the effect of the addition of polar extract of kluwek seeds against<br />microbiological quality and sensory quality and shelf life of tuna fish balls. This study used a factorial<br />completely randomized design with various extract concentrations and storage duration treatments, each<br />of which conducted in three replications. The variables measured were total microbial and organoleptic<br />acceptance. In this study, the fishballs were immersed in 2%, 4%, 6% and 8% b/v extract for 60 minutes,<br />then stored for three days at room temperature (28-30ºC). The results showed that the the highest inhibitory<br />activity against microbial growth was exhibited by meatballs immersed in 8% concentration, in which total<br />microbial load up to the third day storage was 1,32 x 102 CFU/g which was still under INS quality for fish<br />balls of 1 x 107. Fishballs from 0 day storage was more accepted by panelists compared to fishballs from 1,<br />2, and 3 days storage in terms of organoleptic acceptability and fishballs were still accepted organoleptically<br />only until one day storage, while fishballs stored for 2 and 3 days have deteriorated based on visual<br />observation of the color, odor, taste and texture.<br /><br />


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