scholarly journals Analisis Efektifitas Tepung Jamur sebagai Larvasida Aedes aegypti

2012 ◽  
Vol 14 (1) ◽  
pp. 126
Author(s):  
Yekki Yasmin ◽  
Lenni Fitri ◽  
Betty Mauliya Bustam

This research is about effectivity analysis of two kinds of fungi i.e. Beauveria bassiana and Metharrizium anisopliae as Aedes aegyptilarvacide, it has been conducted at laboratories Zoology in Biology Department, Mathematics and Natural Sciences Faculty, Syiah KualaUniversity. Aims of this research were estimating maximum time storage of fungi powder as effective larvacide and the number of bacteriacolonies were found in water used for experiment. This research was used Completely Randomized Design (CRD). The experiments consistof two factors i.e kind and saving time of fungi. The result show that the longer the storage time of Beauveria bassiana the more ineffectiveit was as larvacide and the least fungi colonies were found. Metharrizium anisopliae on the other hand, the longer it was kept, the moreeffective it was as larvacide and the more fungi colonies were found.

2018 ◽  
Vol 19 (1) ◽  
pp. 45
Author(s):  
Nova Hariani ◽  
Eka Wulandari ◽  
Bodhi Dharma

Study of effectiveness of Beauveria bassiana Powder as Larvacide to Aedes aegypti larvae was conducted on September 2016 to May 2017 in Ecologi and Systematics Animal Laboratory, Faculty of Mathematics and Natural Sciences, University of Mulawarman. This study aimed to determine the effect of Beauveria bassiana powder with use flour rice media on differents concentration as larvacide to mortality of larvae Aedes aegypti. Stages of study include arranged experimental design (Completely Randomized Design) with concentration of 0%, 0.125%, 0.25%. 0.5% and 0.75%, taking sample, rearing third instar larvae of Aedes aegypti and application Beauveria bassiana powder in 48 hours observation. The mortality value of larvae willbe presented on percentage tabel and graph. The result showed, this product is capable of killing larvae for 48 hours with the percentage mortality 0%, 10%, 28%, 70% and 80% in each concentration. Mortality of larvae is influenced by concentration and period of exposure. Increased of product concentration that given and period of exposure can effected increased of mortality percentage. Keywords: mortality, Beauveria bassiana powder, Aedes aegypti larvae


2021 ◽  
Vol 9 (1) ◽  
pp. 113
Author(s):  
Ni Made Dwi Lantari ◽  
Pande Ketut Diah Kencana ◽  
Ni Luh Yulianti

ABSTRAK Teh merupakan minuman yang populer serta banyak di minati masyarakat Indonesia maupun dunia. Salah satu jenis teh yaitu teh herbal, yang terbuat dari berbagai daun, biji maupun akar tanaman. Teh daun bambu tabah (Gigantochloa  nigrociliata Buse-Kurz) merupakan salah satu contoh teh herbal yang diolah untuk memanfaatkan senyawa yang terkandung di dalam daun bambu tabah tersebut untuk menghasilkan karakter tersendiri. Penyimpanan pada suhu yang tepat dapat menjaga karakter yang dimiliki oleh teh daun bambu tabah (Gigantochloa nigrociliata Buse-Kurz). Penelitian ini dilaksanakan untuk menentukan suhu dan lama penyimpanan yang tepat dengan kemasan paper sack. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari dua faktor, faktor pertama yang digunakan dalam rancangan penelitian ini adalah suhu penyimpanan dan faktor kedua yang digunakan yaitu lama penyimpanan. Faktor pertama terdiri dari dua jenis suhu yaitu (F1) : suhu 10°C dan (F2) : suhu 30°C. Faktor kedua terdiri dari 6 taraf yaitu (T1) : lama penyimpanan 1 minggu, (T2) : lama penyimpanan 2 minggu, (T3) : lama penyimpanan 3 minggu, (T4) : lama penyimpanan 4 minggu, (T5) : lama penyimpanan 5 minggu dan (T6) : lama penyimpanan 6 minggu. Parameter yang diamati dalam penelitian ini terdiri dari analisis kimia meliputi kadar air, pH, total asam, total fenol, flavonoid dan uji organoleptik terdiri dari warna air seduhan, aroma dan rasa pada daun teh yang telah di seduh. Hasil penelitian menunjukan bahwa suhu penyimpanan 10°C dapat mempertahankan karakteristik teh daun bambu selama waktu penyimpanan 6 minggu lebih baik yaitu dengan kandungan fenol sebesar 114,466 mg/100g dan kandungan flavonoid sebersar 27,675 mg/100g. ABSTRACT Tea is a popular drink and is in great demand by Indonesians as well as in the world. One type of tea is herbal tea, which is made from various leaves, seeds and plant roots. Tabah bamboo leaf tea (Gigantochloa nigrociliata Buse-Kurz) is an example of herbal tea that is processed to utilize the compounds contained in the tabah bamboo leaves to produce its own character. The storage at the right temperature can maintain the character of the tabah bamboo leaf tea (Gigantochloa nigrociliata Buse-Kurz). This research was carried out to determine the proper storage temperature of tabah bamboo leaf tea during storage with packs of papersack from different temperature treatments for 6 weeks. This study used a completely randomized design (CRD) which consisted of two factors, the first factor used was storage temperature and the second factor was storage time. The first factor consists of two types of temperature, namely : a temperature of 10°C and a temperature of 30°C. The second factor consists of 6 levels, namely 1 week storage time, 2 weeks storage time, 3 weeks storage time, 4 weeks storage time, 5 storage time weeks and 6 weeks of storage. The parameters observed in this study consisted of chemical analysis including moisture content, pH, total acid, total phenol, flavonoids and organoleptic tests consisting of the color of the brewed water, aroma and taste of the brewed tea leaves. The results showed that the storage temperature of 10°C could better maintain the characteristics of bamboo leaf tea during the storage time of 6 weeks, namely with a phenol content of 114.466 mg / 100g and a flavonoid content of 27.675 mg / 100g.


Author(s):  
Wiwik Kusmawati

This study aims to determine the effect of Acetobacteraceti concentration and incubation time on levels of acetic acid in the vinegar fermentation of cocoa beans waste media. This study uses a completely randomized design (CRD) arranged as factorial, consisting of two factors and repeated three times. The frst factor is the concentration of Acetobacteraceti which consists of three levels, namely Acetobacteraceti starter concentration of 10% (A1), 13% (A2) and 16% (A3). While the second factor is the time of incubation for 6 days (W1), 8 days (W2) and 10 days (W3). Results of analysis of variance showed that the concentration of Acetobacteraceti and incubation time affect the concentration of acetic acid in the vinegar fermentation of cocoa beans waste media. While Duncan’s test results showed the treatment inoculation 13% starter Acetobacteraceti with 6 days of incubation time signifcantly different from the other treatments with maximum acetic acid content is 4,02%. So that these results meet the standards of vinegar.


Author(s):  
Andi Nur Faidah Rahman ◽  
Meta Mahendradatta ◽  
Jusmiati Effendi

Sale raja banana are foods processed by mature banana which have been through thedrying process. During storage, quality of sale raja banana decreased in terms of chemicalcomposition and organoleptics. It is needed a method to maintain the quality of sale rajabanana during storage by applying packaging technology. The purpose of this study was todetermine the effect of packaging methods (without packaging, HDPE packaging and HDPEvacuum packaging) and storage time on the chemical composition and organoleptic quality ofsale raja banana. The design of this study consisted of two factors: packaging using threetreatment levels (without packaging, HDPE packaging, and HDPE vacuum packaging) andstorage time with five levels of treatment (0, 7, 14, 21, and 28 days). Data was processed usingfactorial Completely Randomized Design (CRD) with three replications. The chemicalparameters analyzed were water content, ash content, reducing sugar, pH, and organoleptictests (including color, aroma, taste and texture). The results showed that the storage of saleraja banana with HDPE vacuum packaging for 28 days gave the best results for all parameters


Author(s):  
Rahayu Rahayu ◽  
Aktavia Herawati ◽  
Aktavia Herawati ◽  
Nur Faizaturrohmah ◽  
Nur Faizaturrohmah

<p>Investing in irrigation is very important and strategic in the context of water supply for agriculture. Therefore, this study aims to identify the most efficient irrigation technique and type of fertilizer to maximize the yield of tomatoes (Solanum lycopersicum) in Alfisols. This study was a greenhouse pot experiment with a factorial completely randomized design with two factors consisting of four irrigation techniques (pottery, drip, 75% ETc manual, and 100% ETc manual) and types of fertilizers (without, organic, inorganic, mixed fertilizer). The results showed that pottery irrigation had the highest Nitrogen content in the soil and saved up to 50% water compared to 100% ETc. On the other hand, drip irrigation uses water of 75% ETc with similar plant yield results. The pottery irrigation was the most efficient irrigation method for growing tomato than 75% ETc manual irrigation, and 100% ETc manual irrigation with mixed fertilizers (I4P3) was the highest on tomato yield.</p>


2019 ◽  
Vol 49 ◽  
Author(s):  
Renan Zampiroli ◽  
Cleyton Batista de Alvarenga ◽  
Bruno Sérgio Vieira ◽  
Jair Rocha do Prado ◽  
Paula Cristina Natalino Rinaldi ◽  
...  

ABSTRACT Adverse weather conditions, or mechanical problems and decrease in the application rate, may increase the storage time of the spray solution in the sprayer tank. This study aimed to assess the effect of the phytosanitary spray solution storage on the germination of Beauveria bassiana conidia, with or without agricultural adjuvants. A completely randomized design was used, in a 13 x 5 factorial scheme, consisting of thirteen storage times (0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44 and 48 h) and five compositions for the spray solution (B. bassiana, B. bassiana + Helper Neutrum, B. bassiana + TA-35, B. bassiana + Nimbus and B. bassiana + Orobor). The biological spray solution containing B. bassiana conidia and no adjuvants remained viable for use after preparation and the conidial germination decreased 9.2 times after 48 h when an adjuvant was added.


2018 ◽  
Vol 12 (4) ◽  
pp. 178
Author(s):  
Dyah Widiastuti ◽  
Bina Ikawati ◽  
Upik Kesumawati Hadi

Aedes aegypti is a major vector of dengue, a deadly disease causing deaths of millions of people in developing countries, both in urban and rural populations. Aedes aegypti control with chemical insecticide is widely used, and affects on a widespread insecticide resistance. Mosquito biological control was needed to replace the use of chemical insecticide. This study aimed to evaluate larvicidal effect of mixture of Beauveria bassiana crude metabolite and chitinase enzyme against Aedes aegypti larvae. An experimental study using completely Randomized Design was conducted in March-April 2016 at Banjarnegara Research and Development Unit for Zoonosis Control. Biolarvacide formula was made of mixture with 2 : 1 ratio between Beauveria bassiana crude metabolite and chitinase isolated from chitinolytic bacteria, which was propagated by the Agency’s Bacteriology Laboratory. In experimental method, 120 Aedes aegyptilarvae (3rd instar) were exposed with four concentrations of biolarvacide formula (4%, 8%, 16%, and 32%) in 3 replicates. Results showed that exposure of biolarvacide formula caused the third instar larval mortality which started on the first day of exposure. Probit analysis showed LC50 value was obtained at concentration of 53.2 ppm. This shows that larvacide formula of Beauveria bassiana and chitinase enzyme compounds are effective to be used as larvacides against Aedes aegypti larvae.


2021 ◽  
Vol 9 (1) ◽  
pp. 95
Author(s):  
Maria Elfira Semana ◽  
Pande Ketut Diah Kencana ◽  
I Gusti Ngurah Apriadi Aviantara

ABSTRAK Bambu tabah termasuk kingdom Plantae, divisi Magnoliophyta, kelas Monocotyledoneae, ordo Graminales, famili Gramineae, sub famili Bambusoideae genus Gigantochloa, spesies Gigantochloa nigrociliata Buse-Kurz. Bambu tabah merupakan varietas asli yang berasal dari Pupuan-Tabanan dan banyak dibudidayakan di desa Payangan Gianyar. Penelitian ini dilakukan degan tujuan untuk menentukan kemasan yang dapat mempertahankan karakteristik yang terdapat pada teh daun bambu tabah dengan perlakuan pengemasan menggunakan tiga jenis kemasan yang berbeda yang disimpan pada inkubator dengan suhu 30 °C ± 3 dengan lama penyimpanan enam minggu. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari dua faktor yaitu penggunaan jenis kemasan yang berbeda dan lama waktu penyimpanan. Faktor pertama terdiri dari tiga taraf yaitu, (K1) : Alumunium Foil, (K2) : Plastik Polipropilen (PP), dan (K3) : Paper Sack. Faktor kedua terdiri dari tiga taraf yaitu, (T1) : 14 hari penyimpanan, (T2) : 28 hari penyimpanan, dan (T3) : 42 hari penyimpanan. Parameter yang diamati dalam penelitian terdiri dari Kadar Air, Laju Pengeringan, pH, Total Asam, Total Fenol, Total Flavonoid, dan Uji Organoleptik terdiri dari warna, aroma, dan rasa pada daun teh bambu tabah yang diseduh. Hasil penelitian menunjukkan bahwa kandungan fenol tertinggi terdapat pada perlakuan penggunaan jenis kemasan alumunium foil selama penyimpanan 42 hari yaitu 119.354 mg/100g dan total flavonoid yang tertinggi atau terbaik terdapat pada perlakuan penggunaan jenis kemasan alumunium foil selama penyimpanan 42 hari yaitu 27.419 mg/100g.  ABSTRACT Rigid bamboos include kingdom Plantae, division Magnoliophyta, class Monocotyledoneae, order Graminales, family Gramineae, sub family Bambusoideae genus Gigantochloa, species Gigantochloa nigrociliata Buse-Kurz Tabah bamboo is a native variety originating from Pupuan-Tabanan and is widely cultivated in Payangan Gianyar village. This research was conducted with the aim of determining the packaging that can maintain the characteristics contained in tabah bamboo leaf tea with packaging treatment using three different types of packaging stored in an incubator at a temperature of 30 ° C ± 3 with a storage time of six weeks. This study used a completely randomized design (CRD) which consisted of two factors, namely the use of different types of packaging and storage time. The first factor consists of three levels, namely, (K1): Aluminum Foil, (K2): Polypropylene Plastic (PP), and (K3): Paper Sack. The second factor consists of three levels, namely, (T1): 14 days of storage, (T2): 28 days of storage, and (T3): 42 days of storage. The parameters observed in the study consisted of moisture content, drying rate, pH, total acid, total phenol, total flavonoids, and organoleptic tests consisting of color, aroma, and taste of brewed tabah bamboo tea leaves. The results showed that the highest phenol content was found in the treatment of using aluminum foil packaging for 42 days, which was 119,354 mg / 100g and the highest or best total flavonoids were found in the treatment of using aluminum foil packaging for 42 days, namely 27,419 mg / 100g.  


2015 ◽  
Vol 39 (1) ◽  
pp. 9 ◽  
Author(s):  
Indah Nur Lestarini ◽  
Novitasari Anggarawati ◽  
Adi Magna Patriadi Nuhriawangsa ◽  
Ratih Dewanti

<p><span><em>The aim of the research was to determine the advantage of tumeric flour (Curcuma domestica Val) </em><span><em>and ginger flour (Zingiber officinale) addition on quality of culled duck meatball in different storage times. </em><span><em>The materials were thigh duck, tumeric flour and ginger flour. The design used in experiment was a </em><span><em>Completely Randomized Design (CRD) with factorial pattern 4x3 as the first factor was concentration of </em><span><em>turmeric flour (0; 0.5; 1.0; 1.5%) and ginger flour (0; 1; 2; 3%) and the second one was storage time (0; 8; </em><span><em>16 hours). The result of the research showed that storage time affected (P&lt;0.05) pH, tenderness and waterholding capacity. Concentration of tumeric flour and ginger flour affected tenderness.There was no </em><span><em>interaction between those two factors on pH, water-holding capacity, tenderness,and total proteolitic </em><span><em>bacteria. Concentration of turmeric flour 0,5% and ginger flour 1% with storage time during 0 hours gave </em><span><em>the best result, with a pH value 6.49, tenderness 0.31, water-holding capacity 22.27, and a total proteolytic </em><span><em>bacteria , 3.57x10</em><span><em>4</em><span><em>. In conclusion, the finest result founded at 0.5% of turmeric flour and 1% of ginger flour</em><span><em>addition in meatball before storage.</em><br /></span></span></span></span></span></span></span></span></span></span></span></span></span></p><p><span><span><span><span><span><span><span><span><span><span><span><span><span><span><em>(Keywords: Culled duck, Ginger flour, Meatball, Storage time, Tumeric flour)</em></span></span></span></span></span></span></span></span></span></span></span><br class="Apple-interchange-newline" /></span></span></span></p>


2014 ◽  
Vol 6 (2) ◽  
pp. 185-191 ◽  
Author(s):  
Askar GHANI ◽  
Seyyed Hossein NEAMATI ◽  
Majid AZIZI ◽  
Mohammad Jamal SAHARKHIZ ◽  
Mohammad FARSI

The present study was conducted to polyploidy possibility induction of two Iranian endemic mint (Mentha mozaffarianii) ecotypes. For this purpose, three experiments were done. The first experiment was factorial, based on completely randomized design with three factors and three replications that rhizomes were used for treatment. The first factor including different colchicine concentrations (0, 0.025, 0.05, 0.1 and 0.2% that 0 as control). The second factor including two Mentha ecotypes (Ecotype A: Kamarej region and Ecotype B: Pirmohlat region) and the third factors consist of two soaking time (6 h and 12 h). In second experiment, apical meristem was treated. The factorial experiment based on randomized completely design with two factors and five replications. The factors including different colchicine concentrations (0, 0.035, 0.07, 0.15, 0.3 and 0.7%) and two ecotypes. In the third experiment, colchicine as combined with irrigation was applied. For this purpose, a factorial experiment in randomized complete design with two factors (colchicine concentrations: 0, 0.025, 0.012, 0.006% and two mint ecotypes) and three replications was conducted. At the end of all experiments, survival rate and tetraploidy percentage (by morphological change, stomata traits, flow cytometry and chromosome counts) were measured. The results showed that different treatment had significant effects on survival percent on all experiments and increasing of colchicine concentration caused decreasing plants survival. On the other hand, tetraploidy changes only in the first experiments were observed. Only in 0.025% colchicine treatment with 6 h soaking time on ecotype A, 12.66% tetraploidy was identified. Totally, it is seems that Mentha mozaffarianiihardly response to colchicine for tetraploidy induction.


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