scholarly journals PENGARUH VARIASI PERENDAMAN UDANG VANAME (Litopenaeus vannamei) DALAM ASAM BUAH ALAMI TERHADAP PENURUNAN KADAR TIMBAL (Pb) DI TAMBAK TRADISIONAL PASIR SAKTI LAMPUNG TIMUR

BIOLOVA ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 134-143
Author(s):  
Devi Susilawati ◽  
Hening Widowati ◽  
Widya Sartika Sulistiani

Natural fruit acids are fruits that taste sour containing organic acids, one of which is citric acid, examples of natural fruit acids are tamarind, lime, lemon, pineapple. Natural fruit acids can be used as an ingredient for soaking food derived from fishery products to get rid of the fishy smell and give the people a flavor of cooking. The purpose of this study was to determine the effect of immersion of natural fruit acids on the reduction of lead (Pb) levels in Vanamae shrimp, to determine which immersion variations had the most effect on reducing lead levels in Vanamae shrimp. This study used an experimental method with a completely randomized block design (RAKL). The experiment was carried out with 5 treatments, namely Control (200 grams of shrimp without immersion), Treatment 1 (200 grams of shrimp + 25ml filtrate), Treatment 2 (200 grams of shrimp + 25ml of lime), Treatment 3 (200 grams of shrimp + 25ml filtrate lemon), and treatment 4 (200 grams of shrimp + 25 ml filtrate), each treatment was given 4 times each. Based on the analysis of the anava test, the results obtained Fhit> Fdaf, It was concluded that there was an effect of immersion in natural fruit acids on reducing the levels of lead (Pb) in Vaname shrimp meat, soaking with lime acid was the most significant to reduce the levels of lead metal Pb.

2008 ◽  
Vol 2 (1) ◽  
pp. 104 ◽  
Author(s):  
Lois Mahoney ◽  
William LaGore ◽  
Joseph A. Scazzero

This study examines corporate social performance (CSP) in firms that restate their financial statements and, using a match pair design, compares their performance to firms that do not restate their financial statements.  Utilizing a randomized block design (two years prior to the<br />restatement and two years after the restatement) for a sample of 44 U.S. firms, we found that CSP Strengths, CSP Weaknesses, CSP People Strengths, and CSP People Weaknesses all increased after restatement <br />though weaknesses increased at a greater rate than strengths. Additionally, using panel data and a match pair design we found, we found<br />that restating firms had a greater increase in CSP Strengths, CSP Weaknesses, CSP Product Strengths, CSP People Strengths and a greater decrease in Total CSP People than non-restating firms after the restatement period. When comparing the relationships between CSP and<br />financial performance (FP), we found that the positive relationship between<br />ROA and CSP Strengths is greater for restatement firms than non-restating firms.  In particular, we find that this positive relationship is a result of the People dimension of CSP, in particular CSP People Strengths.<br /><br />


2019 ◽  
Vol 7 (4) ◽  
pp. 615
Author(s):  
Gede Asstaradi Kusuma ◽  
Nyoman Semadi Antara ◽  
Ni Putu Suwariani

Dregs of solid waste brem industry contained 12 percent of sugar and 10,8 percent of starch. Component contained in the dregs are expected to produce citric acid. The aims of this study were to determine the effect of static cultivation on the production of citric acid from liquid hydrolyzate brem waste by using Aspergillus niger. The experimental design used in this study was a simple randomized block design (RAK), which the static cultivations (0, 1, 2, 3 days) as a treatment. The results showed that the static cultivation treatment significantly affected the level of acidity (pH), total soluble solids, biomass, reducing sugar, calcium citrate, citric acid and yield. The static cultivation for 1 day was the best treatment to produce Ca-citrate which the production level was 3,84 ± 0,05 g/L. By the stoichiometry method the citric acid production could be calculated, which equal to 2,12 ± 0,03 g/L. Keywords: Aspergillus niger, dregs of brem, static cultivation, Ca-citrate, citric acid  


2016 ◽  
Vol 21 (2) ◽  
pp. 185 ◽  
Author(s):  
Dwi Amiarsi ◽  
Pudji K Utami

Larutan perendam (pulsing) merupakan suatu larutan yang diberikan segera pada bunga sebelum pengiriman untuk memberi tambahan energi, melindungi tangkai bunga dari serangan mikroorganisme penyebab penyumbatan, dan menunda kelayuan. Penelitian ini bertujuan memperoleh komposisi larutan perendam yang tepat dalam upaya memperpanjang masa kesegaran bunga potong Alpinia. Penelitian dilakukan sejak  Agustus 2005 sampai dengan Februari 2006 di Kebun Percobaan Pasarminggu, Balai Penelitian Tanaman Hias.Tiga jenis bahan pengawet digunakan dalam penelitian ini, yaitu gula pasir dengan lima taraf konsentrasi 5, 10, 15, 20, dan 25% serta AgNO3 50 ppm dan asam sitrat 50 ppm (pH 3-4) dengan lama perendaman 2 dan 10 jam. Penelitian menggunakan rancangan acak kelompok faktorial dengan lima ulangan dan lima tangkai bunga potong per unit perlakuan. Hasil penelitian menunjukkan bahwa larutan perendam yang mengandung  AgNO3 50 ppm + gula 20% + asam sitrat 50 ppm (pH 3-4) dengan perendaman selama 2 jam memberikan hasil terbaik, yaitu masa kesegaran bunga potong mencapai 11,22 hari (atau 5,56 hari lebih lama dibanding tanpa perendaman) dengan persentase pembukaan braktea  sebesar 33,14%. Hasil penelitian ini dapat dimanfaatkan untuk merancang pengaturan suplai bunga potong ke pasar.<br /><br /><br /><br />Pulsing solution is commonly used to prolong vaselife by dipping the flower stalks in a solution containing sugars and germicides before delivering to give energy and to prevent the plugging of stalks by microbial growth, and to postpone wilting of flowers. The experiment was conducted to determine the appropriate composition of pulsing solution to prolong vaselife of Alpinia cut flowers. Three kinds of pulsing solution were tested in the experiment i.e. sucrose with concentration levels of 5, 10, 15, 20, and 25%, 50 ppm AgNO3, and 50 ppm citric acid (pH 3-4) with dipping periods of  2 and 10 hours. The experiment was arranged in a completely  randomized block design with five replications and five cut flowers stalks per treatments. The results indicated that pulsing solution containing 50 ppm AgNO3 + 20% sugar + 50 ppm citric acid (pH 3-4) with the 2 hours dipping period was the best treatment exhibited vaselife up to 11.22 days or 5.56 days longer than control, and with bud opening of 33.14%. The result implies that the such method can be exploited to arrange cut flower supply to the market.


Author(s):  
Ni’matusyukriyah Ni’matusyukriyah ◽  
Muh. Aniar Hari Swasono

The super red dragon fruit peels waste that is under utilized by the people and prefers to be thrown away, has a lot of nutrient content over the fruit flesh, and the decline in people's interest in fermented cassava causes the loss of cassava farmers. Therefore, it is necessary to do research on the innovation of fermented cassava which also adds value to the nutritional content. This study aims to determine the effect of the addition of super red dragon fruit peels percentage and the addition of yeast percentage to antioxidant activity. The method used in the study of the manufacture of antioxidant fortified yellow cassava using factorial Randomized Block Design (RBD) consisting of 2 factors, the first factor consists of 3 levels and the second factor consists of 3. Of the two factors obtained 6 combinations of treatments. Each treatment was repeated three times, so that 18 treatment combinations were obtained. Tests carried out include physicochemical tests (antioxidant activity, pH, color intensity) and organoleptic tests (color, aroma, taste and texture). Analysis of physicochemical test using ANOVA. If it is significantly different, then it is followed by the Tukey method and to find the best treatment according to physicochemical parameters using the Zelleny method. Organoleptic test analysis uses the Friedman test and to find the best treatment according to organoleptic parameters using Effectiveness Index. The results of this study indicate that the combination treatment of the addition of super red dragon fruit peels by 30% w/v and the percentage yeast of 0.4% w/w is the best results according to physicochemical test parameters with the following characteristics: DPPH% Inhibition (83.115%), pH (4.53), L color intensity (50.2), Color intensity a + (47.7), Color intensity b + (12,32). The best treatment organoleptic test was obtained from a combination of treatment the percentage of the addition of super red dragon fruit peels by 30% b / v and the percentage of yeast 0.4% b / b provided that the average color organoleptic test score was 3.97 (likes), flavor 3 , 77 (likes), texture 2.77 (enough), taste 3.5 (likes).


Author(s):  
Eva Nirwana Anwar ◽  
Rekna Wahyuni

Anna apple jam is defined as an apple jam that is modified into apple jam in sheet form (sheet jam). Apple anna makes it possible as a raw material for making jam sheets because it has high pectin, which is 9-15% and has acidity in accordance with the requirements, which is 3.46. Katuk plant (Sauropus androgynous L.Merr.) has long been known by the people in Indonesia as a vegetable plant with high nutritional content. Flavonoids contained in katuk leaves (Sauropus androgunus (L) Merr) have the ability as a powerful antioxidant. The experimental design used was a randomized block design (RBD) consisting of 1 factor with 5 treatments: K1 (Addition of 0% katuk leaf pulp, 100% apple pulp), K2 (Addition of katuk leaf pulp 5%, 95% apple pulp ), K3 (Addition of katuk leaf pulp 10%, the pulp of apples 90%), K4 (Addition of katuk leaf pulp 15%, 85% apple pulp) and K5 (Addition of katuk leaf pulp 20%, apple pulp 80%). Data obtained after the treatment of the organoleptic test (flavor, taste, texture, and color) on each variable was entered in the table to be analyzed by Friedman Test. Where as in the treatment of physicochemical tests (water content, antioxidants, texture, and color) were analyzed by F test and if there were differences were analyzed by 5% LSD test. The best treatment based on effectiveness index was K2 (addition of katuk leaf pulp 5%, apple pulp 95%) with physicochemical parameter values ​​namely water content (45.69%), antioxidants (96.67 mg/ml), texture (1.17), color b + (7.47) and organoleptic parameter values ​​are taste (4.44), flavor (4), color (4.28), texture (3.76).


2018 ◽  
Vol 3 (4) ◽  
pp. 835-839
Author(s):  
Trysia Zulfina ◽  
Novi Safriani ◽  
Nida El Husna

Abstrak.  Senggani (Melastoma polyanthum BI.) adalah tanaman hias yang tumbuh pada lahan semak dan memiliki buah dengan ukuran kecil yang berwarna ungu atau merah muda. Warna ungu pekat pada buah senggani berasal dari kandungan senyawa antosianin yang berpotensi untuk dijadikan sebagai sumber zat warna alami. Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan rasio bahan dengan pelarut dan konsentasi asam sitrat terhadap intensitas warna dari ekstrak buah senggani. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) pola faktorial yang terdiri atas 2 (dua) faktor. Faktor pertama adalah rasio bahan dengan pelarut (P) yang terdiri dari 4 taraf yaitu: P1=1:5, P2=1:10, P3=1:15, P4=1:20. Faktor kedua adalah konsentrasi asam sitrat (A) yang terdiri dari 2 taraf yaitu: A1=0,4%, A2=20%. Setiap perlakuan diulang sebanyak 3 kali sehingga diperoleh 24 satuan percobaan. Hasil sidik ragam menunjukkan bahwa Rasio bahan : pelarut berpengaruh sangat nyata (P≤0,01) terhadap aktivitas antioksidan, derajat keasaman (pH), intensitas warna ekstrak buah senggani. Konsentrasi asam sitrat berpengaruh sangat nyata (P≤0,01) terhadap total antosianin, aktivitas antioksidan, intensitas warna. Berdasarkan hasil analisis intensitas warna ekstrak buah senggani, perlakuan terbaik diperoleh pada kombinasi perlakuan antara rasio bahan : pelarut 1:5 dan konsentrasi asam sitrat 20% (P1A2) dengan karakteristik ekstrak memiliki intensitas warna 0,57. Abstract. Senggani (Melastoma Polyanthum BI.) is an ornamental plant that grows on a bushland and has a fruit with a small size that is purple or pink. The colour of the fruit comes from anthocyanin compound that is potential to be used as a source of natural dyes. This study aimed to determine the effect of the ratio between material and solvent and the concentration of citric acid on the color intensity of the senggani fruit extract. Randomized Block Design (RAK) of factorial pattern consisting of 2 (two) factors was used. The first factor was the ratio between material and the solvent (P) consisted of 4 levels: P1 = 1: 5, P2 = 1: 10, P3 = 1: 15, P4 = 1: 20. The second factor was the concentration of citric acid (A) consisted of 2 levels: A1 = 0.4%, A2 = 20%. Each treatment was repeated 3 times to obtain 24 units of experiment. The results showed that the ratio between material and solvent has an effect (P≤0.01) on the antioxidant activity, the degree of acidity (pH), the intensity of the extract color of the fruit of senggani. Citric acid concentration was highly significant (P≤0.01) to total anthocyanin, antioxidant activity, and colour intensity. Based on the analysis of the intensity of the extract color of the senggani fruit, the best treatment was obtained from the combination between the ratio of the ingredient: solvent 1: 5 solvent and 20% citric acid concentration (P1A2) where the extract has the color intensity of 0.57.Keywords: Senggani, Melastoma polyanthum BI., colour intensity, citric acid.


Author(s):  
Md. Shamsher Ahmad ◽  
M. W. Siddiqui ◽  
J. P. Singh ◽  
H. Mir ◽  
Md. Abu Nayyer

Objective: Pre treatments such as T2 (citric acid 1% + 0.5% haldi +1% salt) and T3 (citric acid 1% + KMS 0.5%) were the most effective to reduce browning and resulted high quality banana flakes. The flakes were evaluated for moisture content, non enzymatic browning and sensory (color, texture and flavour) quality attributes after treatment and during storage. Study Design: Completely Randomized Block Design (CRD) Place and Duration of Study: Department of food Science and Postharvest Technology, BAU, Sabour (Bihar) India during March 2013 to August 2015. Methodology: In this curriculum, banana flakes prepared from different cooking and Table banana cultivars (G-9, Kothiya, Alpan and Batisha,) were subjected to different pre-treatments with citric acid, potassium meta bisulphite, salt and turmeric powder. The flakes were evaluated for moisture content, non enzymatic browning and sensory (color, texture and flavour) quality attributes during storage. Results and Conclusions: Pre treatments prior to drying decreased the incidence of browning of finished products as compared to control. Pre treatments such as T3 (citric acid 1% + KMS 0.5%) and T2 (citric acid 1% + 0.5% haldi +1% salt) were the most effective to reduce browning and resulted high quality banana flakes. OD at 445 was recorded minimum in all cultivars (Kothiya-0.61, Digha-0.68, Batisha-0.69 and G-9-0.72 against T3. Hence treatment T3 maintained whiter colour than other treaments. From the results, it is suggested that quality banana flakes could be prepared from all the cultivars using theses pre-treatments.


MAPETARI ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 45-50
Author(s):  
Irma Lisa Sridanti ◽  
Fitri Susanti

The success of agricultural development has provided very high support for meeting the food needs of the people of Indonesia, but it is realized that behind these successes there are weaknesses that need to be corrected. Varieties consist of a number of different genotypes, where each genotype has the ability to adapt to the environment. Each variety has a genetic that can affect growth and yield, and the ability to adapt to different varieties. Pruning is an attempt to eliminate some parts of the plant, this is usually related to the cutting of parts of the plant that are diseased, unproductive, or unwanted. The purpose of crop trimming by controlling or directing plant growth is produced. This study aims to look at the effectiveness of peroide trimming on the yield of several chili plant varieties (Capsicum annuum L).                This research was conducted in Sumber Bening village, Selupu Rejang Sub-district from July to October 2016. The chili varieties used in this study were F1, Belinda F1 and Samido F1. This study used a Randomized Block Design (RBD) with 2 factors and 3 replications. Data were analyzed using Variety Analysis (Anava). From the results of the analysis that the Jitu variety has better results than Belinda and Samido varieties. It is assumed that the 30% pruning rate is the ideal level of pruning against growth in plant height, number of fruits and weight of fruit. The treatment of varieties against pruning has no significant effect on all variables


Author(s):  
Resman Resman

ABSTRAK            Laju pertumbuhan penduduk Indonesia dari tahun ketahun mengalami peningkatan, sehingga kebutuhan lahan untuk pertanian juga semakin meningkat.  Seiring dengan berkembangnya tingkat konsumsi masyarakat yang membutuhkan bahan pangan tersebut sehingga tanaman jagung menjadi sumber bahan pangan yang selalu dibudidayakan petani di Indonesia.  Namun demikian upaya pengembangan dan peningkatan pertumbuhan jagung untuk mencapai hasil yang diinginkan tidak terlepas dari masalah kesuburan tanah yang semakin menurun. Penelitian ini bertujuan untuk mengetahui peranan mikoriza indigenous terhadap pertumbuhan tanaman jagung di tanah ultisol. Penelitian ini dilaksanakan di kecamatan Kambu, Kota Kendari tahun 2018. Bahan dan alat yang digunakan dalam penelitian ini antara lain: tali rafia, air steril, tanah, propagul mikoriza indigenous, benih jagung, polybag (30 x 40 cm), waring net, plastik transparan, alat-alat pertanian, meteran, kamera digital, ember, terpal, kasa, kantong plastik, saringan serta peralatan laboratorium. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK) yang terdiri dari empat taraf perlakuan. Tanpa propagul  mikoriza indigenous sebagai kontrol (M0), 15 g propagul mikoriza indigenous (M1), 30 g propagul mikoriza indigenous (M2) dan 45 g propagul mikoriza indigenous (M3) masing-masing perlakuan diulang 3 kali. Parameter yang diamati antaralain : tinggi tanaman, diameter batang, jumalh daun, dan persentase infeksi mikoriza. Berdasarkan hasil penelitian ini, maka dapat disimpulkan bahwa pemberian mikoriza indigenous dapat mempengaruhi pertumbuhan tanaman jagung. Perlakuan yang terbaik adalah perlakuan M3 (45 g) propagul mikoriza indigenous atau tanaman. Kata kunci : Mikoriza indigenous, jagung lokal, tanah Ultisol. ABSTRACTIndonesian population growth rate from year to year has increased, so that the need for land for agriculture is also increasing. Along with the development of the level of consumption of the people who need food, the corn plants become a source of food that farmers always cultivate in Indonesia. However, efforts to develop and increase the growth of corn to achieve the desired results can not be separated from the problem of soil fertility is declining. This study aims to determine the role of indigenous mycorrhizae on the growth of maize in Ultisol soil. This research was conducted in Kambu Subdistrict, Kendari City in 2018. The materials and tools used in this study included: raffia rope, sterile water, soil, indigenous mycorrhizal propagules, corn seeds, polybags (30 x 40 cm), waring net, plastic transparent, agricultural equipment, meters, digital cameras, buckets, tarps, gauze, plastic bags, filters and laboratory equipment. The design used was a Randomized Block Design (RBD) consisting of four levels of treatment: Without indigenous mycorrhizal propagules as controls (M0), 15 g indigenous mycorrhizal propagules (M1), 30 g indigenous mycorrhizal propagules (M2) and 45 g mycorrhizal propagules indigenous (M3) each treatment was repeated 3 times. Parameters observed were: plant height, stem diameter, number of leaves and percentage of mycorrhizal infection. Based on the results of this study, it can be concluded that indigenous mycorrhizal administration can affect the growth of corn plants. The best treatment is treatment of M3 (45 g) indigenous mycorrhizal propagules / plants. Keywords : indigenous mycorrhiza, local maize, Ultisol soil


2018 ◽  
Vol 7 (2) ◽  
pp. 2078
Author(s):  
Chitralekha Shyam ◽  
Chandrakar P.K. ◽  
Rastogi N.K. ◽  
Umakant Banjare ◽  
Manoj Densena

Wheat is the world’s most important crop that excels all other cereal crops both in area and production, thereby providing about 20.0 per cent of total food calories for the people of the world. The experiment was conducted at Research Farm, IGKV, Raipur during Rabi 2013-14. Chhattisgarh is located in the east - central part of the country between 17°14’N and 24°45’ N latitudes and 73°30’ E and 84°15’ E longitudes, whereas Raipur the capital of the Chhattisgarh state, lies at 21°16’ N latitude and 81°36’ E longitude with an altitude of 289.60 meters above sea level. All Twenty two genotypes were grown in Randomized Block Design with three replications. Correlation studies give a clear picture of characters association which is generally due to linkage, pleiotrophy, physiological association in developmental and biochemical pathway The phenotypic and genotypic correlations were determined among seed yield and its components in possible character combinations. In Correlation coefficient analysis, seed yield per plant exhibited highly significant positive correlations with number of seeds per spike and number of seeds per plant at both genotypic and phenotypic levels, whereas number of seeds per spikelet at the genotypic level.


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