bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect addition of kappa carrageenan flour to the level of gel strength and acceptability of dumpling from threadfin bream fish (Nemipterus nematophorus) surimi
Authors: Astutik D M , Sulmartiwi L , Saputra E , Pujiastuti D Y 
Published: February 2020

Abstract
Surimi is an intermediate product (semi-finished product) that has an ability to be processed into various products through a cooking process. Dumpling is a steam product and categorized as a product that requires a specification of compact and not have hard gel formation. To improve texture, the formulation used was added kappa carrageenan flour due to it was able to absorb excessive water level which caused by protein denaturation process. The purpose of this study was to determine the effect of adding kappa carrageenan flour on dumpling from threadfin bream fish surimi on the level of gel strength and acceptability product. This study used a completely randomized design which consists of 4 treatments with kappa carrageenan flour concentrations of 0.00%, 0.55%, 1.50%, and 2.45% and 5 replications. The result showed that the addition of kappa carrageenan flour had significant effect (P <0.05) on the value of the texture and acceptability of dumplings from threadfin bream fish surimi, as well as the proximate content. Kappa carrageenan flour with a concentration of 1.50 % produced the moisture and protein content of 50.14% and 8.16%, respectively and showed the best characteristic of compact and moist gel strength.
Selective breeding technique: Pandu and Kunti tilapia (Oreochromis niloticus) broodstock candidates at PBIAT Janti, Klaten-Central Java
Authors: Samara S H , Fathurrozi A W , Sutarno  
Published: February 2020

Abstract
Tilapia (Oreochromis niloticus) is a freshwater aquaculture commodity with high demand and economic value. With developing breeding technology, hybrid tilapia also grows in popularity. Pandu tilapia is a strain of Singapore tilapia, while Kunti tilapia is a GIFT (Genetically Improved Farmed Tilapia) strain. To ensure the continuity of good fingerling stock, the individual selection needs to be conducted on Pandu and Kunti Tilapia broodstock candidates. The family selection method was chosen using 125 pairs of broodstock candidates. The male and female ratio is 1: 1 with horizontal breeding where a broodstock was mated with another fish from its own family or strain to ascertain that there is no cross-breeding. Larvae hatched from the spawning were reared in a nursery pond, then graded. The top 50% fish was reared until reaching the adult stage and bred again. The broodstock candidates were then tested for its performance and mass spawned.
Potential of Caulerpa racemosa extracts as sunscreen creams
Authors: Ersalina E B , Abdillah A A , Sulmartiwi L 
Published: February 2020

Abstract

Caulerpa racemosa contains phenol compounds that have bioactivation as an active ingredient to capture UV radiation. The purpose of this study was to determine the potential of Caulerpa racemosa extract in some solvents. This study used an experimental method consisting of four treatments and five replications, namely Control: Commercial seaweed sunscreen labeled SPF 18, P1: Sunscreen cream with a concentration of 1% extract of Caulerpa racemose n-hexane, P2: Sunscreen cream with a concentration of 1% extract of Caulerpa racemose ethyl acetate, P3: Sunscreen cream with a concentration of 1% extract of Caulerpa racemose ethanol 96%. The best treatment, in sunscreen cream with a concentration of 1% extract of Caulerpa racemose ethyl acetate which has an SPF value of 2.32 ± 0.07 (the effectiveness of protective sunscreen at least 2-4), supported by the results of pH value (Day 0: 7.80 ± 0.11; Day 7: 7.82 ± 0.14). The best treatment hedonic test results, namely in sunscreen cream with a concentration of 1% extract of Caulerpa racemose ethanol 96%, which has an appearance value of 7.13; odor 7.59; texture 6.42; and color 7.09.
Comparative study of marine fish freshness based on the handling method in Puncak Permai modern market and Simo Gunung traditional market, Surabaya
Authors: Sari M , Triastuti J , Pramono H , Sudarno  
Published: February 2020

Abstract
Fish handling conditions on the market nowadays mainly in the traditional market is less a principle handling with caution, fast, and clean, making the selling fish polluted with chemical, physical, and microbiological pollutants. The fish handling on the modern market is generally better than the traditional markets. Puncak Permai and Simo Gunung Market provide fresh fish more than any other market in Surabaya, making these markets become the main destination for consumers, therefore this study was conducted to observe the fish freshness in both markets. The purpose of this study was to compare the freshness and observe the handling way of traders situating in both markets. This research used a survey method that was conducted for seven times sampling with three days of interval sampling. This study took three types of marine fish. The main parameters observed were pH and organoleptic values, while the supporting parameters were interviewed data. The result showed that the handling method had a significant effect (p<0.05) on the organoleptic condition of all samples observed, but it had no significant effect (p>0.05) on the pH level.
The effect of feed larvae Chironomus sp. and high pellet protein to seedling goldfish (Carassius auratus)
Authors: Dwiardani K H , Sari L A , Sari P. D. W. , Nindarwi D. D. , Arsad S. 
Published: February 2020

AbstractGoldfish production increase in four years, specifically 66,823,000 in 2010 to 72,997,000 in 2014. The increment of goldfish production growth altogether with problems which is a discontinuity of fry stock. The solution for this problem is the purpose of this study, which is understood techniques in Goldfish (Carassius auratus) hatchery. The feed given to goldfish brood is blood worms (Chironomussp. larvae) and pellets with a ratio of 50:50 as much as 3% of the biomass. Goldfish hatchery techniques involve broodstock cultivation, spawning techniques, larval development observation, and larval cultivation. Two kinds of Goldfish used, namely Oranda and Mutiara Goldfish. The results of Oranda goldfish spawning and Mutiara goldfish spawning consecutively are Fecundity 875 eggs, FR 94%, HR 91.83%, SR 93.04% and Fecundity 3850 eggs, FR 93.66%, HR 92.48%, and SR 91.10%. Larval development observation includes embryogenesis until post-hatched larval. Larval cultivation consists of giving various types of feeds, which are artemia nauplii (for 3-7 days old larval), Moina (for 7-14 days old larval), and blood worm or tubifex (> 14 days old larval). Fertilized goldfish eggs will develop through several phases, including zygotes, initial cleavage, blastula, gastrula, segmentation, pharyngula, egg hatching, and development of larvae after hatching.
Influence addition of noni (Morinda citrifolia) in the commercial feed on protein and lipid retentions of sangkuriang catfish (Clarias sp.).
Authors: Azizah F , Arief M , Lokapirnasari W P 
Published: February 2020

Abstract
Catfish (Clarias sp.) Is a freshwater fish that have been grown commercially. One effort to improve feed efficiency is to use a feed additive. Noni (Morinda citrifolia) is a medicinal plant that can be used as a natural feed additive (fitobiotik). This study purposed to study the influence of noni juice (addition on commercial feed on protein and fat retentions in catfish. This study was used as an experimental method to completely randomized design consisting of five treatments and four replications. The number of doses of noni juice is added to the commercial feed is: P0 (0 ml/kg), P1 (5 ml/kg), P2 (10 ml/kg), P3 (15 ml/kg) and P4 (20 ml/kg). Analysis of the data using variant analysis (ANOVA) followed by Duncan’s multiple range test. The addition of noni juice on commercial diets significant effect on the retention of the protein in catfish and the addition of Noni juice on commercial diets do not provide a real impact on the retention of fat in catfish.
Evaluation of hatching rate, growth performance, and survival rate of cantang grouper (Epinephelus fuscoguttatus × lanceolatus) in concrete pond at Situbondo, East Java, Indonesia
Authors: Anita N S , Dewi N N 
Published: February 2020

Abstract
Cantang grouper (Epinephelus fuscoguttatus × lanceolatus) is an Indonesian fisheries commodity that seeded and has high economic value. Cantang grouper is also had excellence because it has fast growth and tolerance to disease, so these fish are widely cultured. The purpose of this study was to analyze the hatching rate, growth monitoring, and survival rate of cantang grouper. This research was conducted at UPT PBL Situbondo, East Java Province on December 2018 until January 2019. Spawning of the cantang grouper was done artificially. The hatching rate of cantang grouper eggs was 53.3 %, growth rate ranging from 0.0009-0.7900 gr/day and specific growth rate ranging from 10.34-29.84 %. Larvae maintenance includes feeding, measurement of water quality, and change of water. Feeding is in the form of Chlorella sp., Rotifer, Artemia sp., Acetes sp., and artificial feed. The survival rate of cantang grouper was 26.9%. The measured water quality was a temperature ranging from 29-30 °C, pH with a range of 7.9-8, and dissolved oxygen (DO) was 7 mg/L.
The effect of temperature, salinity and antimicrobial agent on growth and viability of Aeromonas hydrophila
Authors: Ulkhaq M F , Budi D S , Rahayu N N 
Published: February 2020

Abstract

Aeromonas hydrophila bacteria have been pathogen of Motile Aeromonads Septicemia disease that infects all of the freshwater fish. Control of microbe growth can be done by manipulating environmental factors and utilizing antimicrobial agents. The purpose of this study was to investigate the effect of temperature, salinity, and antimicrobial on the growth and viability of A. hydrophila. The treatments of the study consisted of temperature, salinity, and antimicrobial tests. Temperature treatment used Trypticase Soy Broth (TSB) medium incubated at 4˚C, 28˚C, 37˚C, and 70˚C. Trypticase Soy Agar (TSA) added with NaCl of 0%, 3%, and 10% in salinity treatment. Antimicrobial treatment was performed by disc diffusion method using chloramphenicol (25 ppm and 50 ppm), Phyllanthus niruri extract (3 ppt and 30 ppt), formaldehyde (0.4% and 4%), penicillin (25 ppm and 50 ppm), and NaCl 0.9% (control). All treatments were incubated for 24 hours at 28˚C and were observed for bacterial growth. The study showed that A. hydrophila bacteria were growth optimally in medium with salinity 0% and 3% after incubated in temperatures of 4˚C, 28˚C, and 37˚C. Antimicrobial that inhibits the growth of A. hydrophila was Chloramphenicol 25 and 50 ppm; Phyllanthus niruri extract 30 ppt and formaldehyde 0.4% and 4%.
Utilization of By Product Kappaphycus alvarezii as Earthquake Resistant Material Lightweight Concrete
Authors: Musthofa A A , Bahtiar M Z A , Ibrahim F M , Abdillah A A 
Published: February 2020

Abstract
Increasing seaweed production in Indonesia is the result of industrial demand that continues to soar, especially Kappaphycus alvarezii, and has an impact on the accumulation of seaweed processing waste. The use of waste as a substitute for sand in making lightweight concrete can be done because there is a cellulose content that can make bonds between materials which can be used as earthquake-resistant building materials. The purpose of this study was to determine the industrial waste treatment of K. alvarezii can be used as a lightweight concrete for earthquake resistant building materials. This study uses a complete random range with six treatments and four replications by testing compressive strength, flexural strength, and water absorption. The best treatment is a substitution with a 60% waste concentration with the results of the compressive strength test of 1.15 MPa, the flexural strength of 5.37 MPa, and a water absorption capacity of 62.25%. The suggestion from this research is to do mass production with the substitution formulation of carrageenan waste by 60%.
The effect of density as Skeletonema costatum bioremediation agent of copper (Cu) heavy metal concentration
Authors: Pratama N A , Rahardja B S , Sari L A 
Published: February 2020

Abstract
Heavy metals copper (Cu) was microelements needed by organisms in small quantities. The type of plankton that could be used as a bioremediation agent because of its abundance and resistance in nature was Skeletonema costatum. This study aims to determine the effect of different density of Skeletonema costatum exposure Cu and Determine the effect of exposure to the growth of Skeletonema costatum. The design used in this research was an experimental method. This research using Completely Randomized Design (CRD) with three treatments and six replications. Treatment used was 5,000 cells/ml (A), 10,000 cells/ml (B), and 15,000 cells/ml (C) of cells density at 1 ppm Cu concentration. The results of this study prove that the density of Skeletonema costatum could affect Cu uptake levels with the absorption percentage of treatment A was78,62b ± 10.40; the absorption percentage of treatment B was 88,13ab ± 7.49; the absorption percentage of treatment C was 91,96b ± 4.87. Culture media that contained 1 ppm Cu concentration could affect the growth and growth phase of Skeletonema costatum. Skeletonema costatum that exposed cells with Cu has higher growth than with Cu reviews those not exposed.
Vaname shrimp (Litopenaeus vannamei) post-harvest marketing analysis in traditional pond systems at Turi District, Lamongan, East Java, Indonesia
Authors: Ningsih M S A , Prayogo  , Sahidu A M 
Published: February 2020

Abstract
This study aimed to determine the marketing chain of vaname shrimp (L. vannamei) in Turi district, Lamongan, East Java Province, Indonesia and the most frequent marketing chain based on the number of shrimp farmers chosen. This study used the survey method to describe the problem following the facts based on a field survey and simple random sampling for obtaining the appropriate respondents. Data were obtained from marketing agencies involved, marketing structures, market behavior, marketing margins, farmer’s share, and profit cost ratio. The result showed that vaname shrimp post-harvest marketing in Turi district, Lamongan had four marketing chain types involving shrimp farmers, shrimp farmers, wholesale traders, retailed traders, and factories. The most frequent marketing chain type used was marketing chain I (shrimp farmers – distributors – wholesale traders – consumers), though it was the longest chain type and lowest farmer’s share value, besides the most inefficient marketing chain type. This study suggested that it was necessary to cut the marketing chain to make the profit cost ratio increase, resulting in high profit for the shrimp farmers.
The effect of depuration on lead levels of the cockles Anadara sp. by using activated carbon as a filter
Authors: Firdaus A R , Mubarak A S , Tjahjaningsih W 
Published: February 2020

AbstractConsumption of cockles with high concentrations of lead metal (Pb) will hurt harm humans from health aspects. The concentration of Pb metal in cockles can be reduced through a depuration process. This study aims to determine the efficient time of retention and the rate of decrease in the concentration of Pb in the cockles (Anadarasp.) by using activated carbon as a filter during the depuration process. The treatment of study consists of P0 (no depuration), P1 (depuration 24 Hours), P2 (depuration 48 Hours), and P3 (depuration 72 Hours). The results showed that the process of depuration of the cockles for 24 hours with activated carbon filters was able to reduce the Pb metal content to 0.926 mg/kg and even the depuration process for 72 hours, the efficiency of the depuration process increased to 86.52% so that the Pb content in the cockles became 0.273 mg/kg. Overall, the duration of the process of depuration of the cockles with activated charcoal as a filter can increase the efficiency of Pb metal reduction in the cockles so that it according to SNI 7387: 2009, which is the maximum metal content of Pb in the shellfish 1.5 mg/kg.
The effect of kersen (Muntingia calabura L) leaf extract on bacteria Aeromonas salmonicida smithia in vitro
Authors: Kartika N , Sudarno  , Handijatno D 
Published: February 2020

AbstractKersen (M. calaburaL) leaf can be used as a medicine because kersen leaf contains compounds flavonoids, saponins, polyphenols, and tannins. This study aims to determine the inhibitory power and the smallest concentration of a solution of kersen (M. calaburaL) leaf extract toA. salmonicidain vitro. This research uses experimental methods and studied is the activity of kersen leaf extract as an antibacterial toA. salmonicidawith a comparison between treatment and control. The treatments were concentrations of kersen leaf extract of 2 mg/ml, 1 mg/ml, 0.5 mg/ml, 0:25 mgml, and 0.125 mg/ml, positive control (chloramphenicol) and negative control, dimethyl sufoxide (DMSO 5% ). The parameters were observed in this study the antibacterial activity of kersen leaf extract toA. salmonicida, and dilution of the concentration of the smallest kersen leaf extract can inhibitA. salmonicidain vitro. The results showed that kersen leaf extract had antibacterial power toA. salmonicidagrowth. Cassava leaf extract has the ability to inhibit the in vitro growth ofA. salmonicidaat the smallest concentration of 0.5 mg/ml with inhibiting zone of 10 mm Because at that concentration is more effective when compared with chloramphenicol.
Growth and survival rate of silver barb, Rasbora argyrotaenia under different concentrations of sardinelle fish oil addition in fish feed
Authors: Dewi S A , Mubarak A S , Mukti A T 
Published: February 2020

Abstract
Sardinelle fish oil is one of the compositions of the fat source which contains Omega-3 potentially to improve growth performance. The addition of sardinelle fish oil in fish feed is, therefore, important to do to could boost the growth of the fish. This study aims to determine the effect of adding sardinelle fish oil towards the growth performance and survival rate of silver barb and also determines the optimum concentration of sardinelle fish oil in feed formulation that results in the highest growth and survival rate of the silver barb. This research applied a completely randomized design for experimental method, which consisted of five treatments each treatment has four replications in 42 days. The results showed that adding sardinelle fish oil with different concentrations significantly has affected specific growth rate (SGR), feed intake (FI) and feed conversion ratio (FCR), but did not significantly affect survival rate (SR) and average daily length gain (ADGL) of silver barb. Addition of sardinelle fish oil by 4% resulted in SR (100%), SGR (2.17%/day), ADGL (0.85%/day), highest FI (63.81g/50 fish) and lowest FCR (1.73).
Substitution of fermented soybean juice dregs on catfish (Pangasius pangasius) feed formulation toward specific growth rate, efficiency of feed, feed conversion ratio, digestibility of crude protein, and energy
Authors: Arifiina Z N , Anjarwati A P , Lamid M , Agustono  
Published: February 2020

AbstractThe highest cost in catfish farming is feed. One of the imported feed ingredients is fermented dregs flour of soybean juice. This study aims to determine the effect of substitution of soybean meal flour with fermented dregs flour of soybean juice in catfish formulation feed (Pangasius pangasius) toward specific growth rate, the efficiency of feed, feed conversion ratio, digestibility of crude protein and energy. This research was experimental using 5 treatments which included P0 (100% soybean meal flour), P1 (90% soybean meal flour + 10% fermented dregs flour of soybean juice), P2 (80% soybean meal flour + 20% fermented dregs flour of soybean juice), P3 (70% soybean meal flour + 30% fermented dregs flour of soybean juice), P4 (60% soybean meal flour + 40% fermented dregs flour of soybean juice) with 4 times treatments repetition. The main parameters observed were specific growth rate, the efficiency of feed, feed conversion ratio, digestibility of crude protein, and energy. The results showed that the substitution of soybean meal of specific growth rate, the efficiency of feed, feed conversion ratio, digestibility of crude protein and energy were not significantly different (p> 0.05).
The use of mangrove leaves flour Avicenia rumphiana as antioxidant feed additive in commercial feed towards growth and survival rate of Nile tilapia fry Oreochromis niloticus
Authors: Wulansari D , Sulmartiwi L , Alamsjah M A 
Published: February 2020

Abstract
Nile tilapia has high economic value, in its cultivation, to optimize the growth and survival rate of Nile tilapia could be done by adding vitamin C in its feed as antioxidant. However, vitamin C could not be synthesized in the fish body and expensive. Mangrove leaves Avicennia rumphiana contains antioxidant that suitable as the alternative of antioxidant likes vitamin C. This study aimed to observe the using of feed additive of mangrove leaves flour as antioxidant towards the growth and survival rate of Nile tilapia. This research applied a completely randomized design method which consist both of four treatments and replications that involve 0.02gr/kg vitamin C (K), amount of 0.2gr/kg, 0.4gr/kg, 0.6gr/kg mangrove leaves flour (P1, P2, P3). The result showed that the using of mangrove leaves flour as feed additive in commercial feed in 30 days at 0.02gr/kg has influenced the development of growth and survival rate of Nile tilapia. Therefore, it has proved that mangrove Avicennia rumphiana leaves flour is qualified to be the alternative of feed additive antioxidant in fish feed.
The effect of using different polar solvents on the stability of thermal extraction phycocyanin from Spirulina platensis
Authors: Irawati D , Abdillah A A , Pramono H , Sulmartiwi L 
Published: February 2020

Abstract

Spirulina platensis is one type of blue-green autotrophic microalgae which is included in the cyanobacteria class. Spirulina platensis microscopically, it looks like a thin thread (filament) in the form of a spiral. Phycocyanin, and phycobiliprotein are used in food, biotechnology, and the cosmetics industry because of their color and antioxidants. This goal of research is to provide information of the best polar solvents on the thermal stability of phycocyanin extract from Spirullina platensis. The research method used was the complete random design (CRD) method. The results of the concentration and purity of phycocyanin showed that the heating process using 80ºC for 60 minutes produced phycocyanin. The best polar solvent showe in etanol.
Observed snapshot condition of waters during El Niño Southern oscillation (ENSO) 2015-2017 events in the Maluku Channel
Authors: Bayhaqi A , Surinati D , Prayitno H B 
Published: February 2020

Abstract
The Maluku Sea acts as the east gate for the Pacific transport going to Indian Ocean via internal Indonesian Seas. The observational measurement using RV Baruna Jaya VIII, which was conducted during the second transitional monsoon in the respective years 2015,2016 and 2017, aims to figure out a snapshot condition of waters including in the Maluku Sea. The results emphasize a dominant southward current in the surface layer during the period. Despite having a variation of the meridional current pattern, a greater southward transport during 2016 and 2017 (La Niña years) with the maximum –1 Sv indicates that the air-sea interaction may have influence in the subsurface layer. While three type of water mass are observed in 2015 (El Niño year) such as North Pacific Subtropical Water (NPSW), North Pacific Intermediate Water (NPIW) and South Pacific Subtropical Water (SPSW), there is an isopycnal mixing which triggers a fluctuation of the salinity value in the 200-700 m during 2016 and 2017(La Niña years). In addition, the temperature shifting during El Niño and La Niña events contributes to the discrepancy of nutrient concentration. The higher orthophospate and nitrate are observed during El Niño event associated with the warmer temperature.