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All Journal JOURNAL OF COASTAL DEVELOPMENT Jurnal Akademika Biologi Jurnal Biodjati
Endah Dwi Hastuti
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Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education

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Pengaruh Pemberian Ensim Amilase terhadap Kadar Bioetanol dari Limbah Sagu Padat Muhammad Lukman Hakim; Endah Dwi Hastuti; Sarjana Parman
Jurnal Akademika Biologi Vol. 4 No. 2 April 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Sago starch processing industry in the village Plajan leaving solid waste that pollute the environment. Solid sago waste still contains carbohydrates ± 84.7%, which can be used as a base  material  for  bioethanol  production.  Giving  amylase  enzyme  in  this  study  aims  to optimize the starch hydrolysis process into glucose so as to increase the levels of bioethanol. The purpose of this  study was to determine the effect of amylase enzyme with different volumes on levels of bioethanol. The research methods include hydrolysis, fermentation and distillation.  The  study design  used  was  completely randomized  design  (CRD)  with  four treatments. Such treatment is A = 0 ml of α-amylase and glucoamylase 0 ml (control), B = 2 ml α-amylase and 2 ml of glucoamylase, C = 4 ml of α-amylase and glucoamylase 4 ml, D =6  ml  of α-amylase  and  6  ml  glucoamylase  three  replications.  Parameters  observed  that glucose levels,  levels of ethanol, and the volume  of bioethanol. Analysis  of the data by Analysist  Variance (ANOVA),  followed by Duncan's Multiple Test Test (DMRT). These results indicate that  administration of amylase enzyme is able to increase levels of ethanol until a certain volume. The most effective enzyme volume to produce the highest levels of bioethanol is the range of volume 2  ml α-amylase and 2 ml glucoamylase to 4 ml of α- amylase and 4 ml glucoamylase of ethanol  grading 63.33% to 69.00% with a distillation process the distillation temperature between 70-90oC.Keywords: Amylase, bioethanol, sago solid waste.
PERTUMBUHAN SEMAI RHIZOPHORA MUCRONATA PADA LUAS SALURAN TAMBAK WANAMINA YANG BERBEDA Hadyani M Hanifa; Endah Dwi Hastuti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 6 No. 1 Januari 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

The mangrove forest is a natural resource that is vital to the life of coastal communities, and has experienced the threat of relegation very fast. Seedling growth is important in mangrove conservation in wanamina (silvofishery). This study aimed to examine the growth of mangrove seedlings R. mucronata on different wide of channel ponds. Planting mangrove seedlings carried on channel ponds wanamina (Silvofishery) with a 5 m of length and varies width, that is 1 m; 2 m and 3 m. This research used experimental method with Randomized Design (RBD) conducted for 4 months with the observation period once every two weeks. Mangrove growth was observed are the number of leaves, number of branches, seedling height and stem diameter. Data analysis was performed using Analysis of Variance (ANOVA). The results showed that there was a tendency of better seedling growth in the outlet channel and the channel with 1 m width.  Key words: growth, mangrove, silvofishery, seedlings.
PENGARUH CARA PEMUPUKAN PUPUK CAIR NANOSILIKA MELALUI MEDIUM & PENYEMPROTAN PADA PERTUMBUHAN SUBKULTUR BIBIT ANGGREK Dyah Ayu Kusuma Ningrum; Erma Prihastanti; Endah Dwi Hastuti; Agus Subagyo
Jurnal Akademika Biologi Vol. 5 No. 2 April 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

One way to increase supply orchid seedlings by subculture. Subculture of orchids often have hyperhidrisition. Hyperhidrisition can be overcome by unsure silica. This study aims to determine the effect of different ways through spraying fertilizer with the addition of fertilizer in the medium and analyze the results of the most effective influence on the growth of subculture of orchids. The study was conducted using a completely randomized design (CRD) with a single factor nanosilica fertilizer treatment in the medium and through spraying and each treatment was repeated three times. The treatment in this study are as follows: liquid fertilizer nanosilica M0K0 = 0% in the medium, liquid fertilizer nanosilica M0K1 = 75% in the medium, liquid fertilizer nanosilica M1K0 = 0% through spraying and liquid fertilizer nanosilica M1K1 = 75% by spraying. The data obtained were analyzed by ANOVA significance level of 95%. The results showed nanosilica fertilizer through spraying and the medium Vacint and Went (VW) increased the growth of subcultures Dendrobium sp. Liquid fertilizer application nanosilica with a concentration of 75% through the subculture medium most effectively promote the growth of plantlets subculture Dendrobium sp. Keywords: Dendrobium sp., subculture, fertilization, spraying, nanosilica
PERUBAHAN KUALITAS AIR DAN HUBUNGANNYA DENGAN PERTUMBUHAN SEMAI Rhizophora mucronata Lamk. BERDASARKAN WAKTU PENGAMATAN YANG BERBEDA PADA SALURAN TAMBAK WANAMINA Tyagita Andarani; Endah Dwi Hastuti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 5 No. 1 Januari 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

System management of mangrove areas, which are associated with fish farming as a solution of damage to mangrove areas which less productive, called wanamina pond system (silvofishery). Rhizophora mucronata is a kind of mangrove which is susceptible to changes in environmental quality, so it can directly affect its growth. This study aims to know the growth rate of R.mucronata, water quality, and the relationship of the two, based on different observation time on channel of wanamina pond. The methods used in this study called Completely Randomized Design, while the data analysis that is used in the form of analysis of variance (ANOVA) and multiple linear regression analysis. The result of the analysis of variance for growth of R. mucronata’s seed in four months showed that a growing number of leaves, branches, the stands, and the rod diameter from different observation time shows no different results. Water quality parameter that shows different results are temperature and salinity. Analysis of the relationship of water quality with growth of R. mucronata from multiple linear regression indicates that turbidity and pH give influence negatively to growth of diameter for R. mucronata.Keywords: Rhizophora mucronata, Seed Growth, Water quality.
RESPON PEMBERIAN PUPUK UREA DAN PUPUK KANDANG SAPI TERHADAP PERTUMBUHAN DAN KANDUNGAN MINYAK ATSIRI TANAMAN JAHE MERAH [Zingiber officinale (L.) Rosc var. rubrum ] Linda Saputri; Endah Dwi Hastuti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 7 No. 1 Januari 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Red Ginger plant is one of the export commodities and has benefits as perfume industry, cosmetics, health, and spices. Currently, the volume of demand for ginger products continues to increase, but the demand has not been met because of low productivity so that the need for intensification and provision of fertilizer. The purpose of this research is to study the effect of urea and cow manure on the growth of red ginger plants and to study the type of urea fertilizer and cow manure that gives maximum effect to growth and the essential oil content of Ginger Red plant. Observed parameter include plant height, leaves numbers, plant wet weight, and essential oil content. The study used Completely Randomized Design (RAL) with 4 treatments and 3 replications. Intended treatments are without fertilizer, with cow manure, with urea fertilizer, and with combination of urea fertilizer and cow manure. Data were analyzed with Analysis of Variance (ANOVA) at 95% significant level. Red ginger plants gave cow manure 150 g / polybags tend to produce plant height, plant wet weight, and higher essential oil content. Key Words : Growth, red ginger, urea fertilizer, cow manure
PENGARUH SUHU PENGERINGAN YANG BERBEDA TERHADAP KUALITAS CABAI RAWIT (Capsicum frutescens L.) Evi Ari Parfiyanti; Rini Budi Hastuti; Endah Dwi Hastuti
Jurnal Akademika Biologi Vol. 5 No. 1 Januari 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Chili pepper has a high economic value but it belongs to the type of fruit that can easily damage because of the climacteric phase, therefore, it is needed a proper postharvest handling, either by drying with different temperatures for 14 hours. The research objective is to find out the effect of drying temperature for the quality of chili pepper and find out the best drying temperature that influences the quality of chili pepper. The research design that used is completely randomized design (CRD) with three replications. The drying temperatures that use are T1 (50°C), T2 (60°C) and T3 (70°C). The research parameter consists of weight loss, water content, vitamin C and discoloration. Methods of analyzing the data that used is analysis of variance (ANOVA) continued by significant different test of Duncan Multiple Range Test (DMRT) at the 95% signification level. The chili pepper that drainaged in temperature of 50°C can shows the best result for defend of chili pepper color and texture. The highest contens of vitamin C can be found in temperature of 50°C that show the number of 63.287 mg%. The drying temperature of 70°C give the highest weight loss that show the number of 3.833%  and give the lowest water content for about 72.4%. The research of study show that the drying temperature influence the alteration of chili pepper quality which show the result that it can decrease the fruit weight loss, the water content of chili pepper, vitamin C contens and also the color and the texture of chili pepper.Keywords: Chili pepper, drying temperature, weight loss, water content, vitamin C
DAYA AKUMULASI LOGAM BERAT TEMBAGA (Cu) PADA AKAR DAN DAUN Avicennia marina (Forsk.) BERDASARKAN FASE PERTUMBUHAN YANG BERBEDA DI PANTAI MANGKANG SEMARANG Ahmad Fadhli Jundana; Endah Dwi Hastuti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 5 No. 3 Juli 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Distribution of heavy metals in coastal areas need to know as an early indication of pollution. One type of metal that was widely used in household and industrial activity is copper (Cu). Some pollutants were wasted on the ground will have accumulated in coastal areas, including in the mangrove ecosystem. The research aims to determine the accumulated rate Cu in roots and leaves of Avicennia marina by different growth phases. It was conducted in mangrove ecosystems Mangkang, Semarang. The research design was factorial completely randomized design 2 x 3, the first factor were organs (roots and leaves) and the second factor were phase (Seedling, Sapling and Trees) with twice of  sampling in a 30-day period, the data were analyzed by Analyzed of Variates (ANOVA). Parameter of the research were Cu metal content in the roots and leaves of mangrove, as well as water and sediment. The results showed that the levels of Cu in sediments and aquatic environments of Avicennia marina rangely 2.989-7.026 mg/kg and 0.186-1.676 mg/l, there was an interaction between the growth phase and organs Avicennia marina in accumulating Cu with a probability of 0.006 (< 0.05), the highest interaction was the tree phase and root organ section (0.126) and the lowest was the seedling phase and leaf organ (0.020). The highest of Biological Concentration Factor (BCF) value was tree phase and root organ (92.9- 46.2) and the lowest was the seedling phase and leaf organ (17.2-14.7). The highest of Distribution Coefficient (DC) value was found in seedling phase environment (726.3-1887.7) and the lowest was found in sapling phase environment (493.2-603.4).Key Words : Accumulation, Avicennia marina (forks.), Heavy Metal Cu, Biological Concentration Factor, Distribution Coefficient
Pertumbuhan Tunas Tacca leontopetaloides L. Hasil Mikropropagasi Setelah Pemberian Radiasi Sinar Gamma Co60 dan Hormon Tumbuh yang Berbeda Darnia Astari Parastiti; Endang Kusdiyantini; Endah Dwi Hastuti; Betalini Hapsari; Tri Muji Ermayanti
Jurnal Akademika Biologi Vol. 4 No. 4 Oktober 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Taca  (Tacca  leontopetaloides  L.)  is  one  of  the  plant  family Dioscoreaceae  that  contain compounds   glikosida   flavonoid   called   taccalin   and   taccalonoides   who   potential   as antioxidants. Taka (Tacca  leontopetaloides L.) specifically has not been cultivated, grown only a limited area around the beach, it is necessary to plant vegetative propagation system faster with more results in tissue culture systems. This study aims to determine the growth and the antioxidant potential shoots Tacca leontopetaloides L. mikropropagasi results after administration  of  Co60  Gamma  ray  radiation  and  different  growth  hormones.  Research method  uses  completely  randomized  factorial  design  (RAL)  with  4  treatment  doses  of Gamma radiation Co60 is 0 Gy, 5 Gy, 20 Gy, and 30 Gy and 3 treatment of growth hormone that MSo, MSo + 0,5 BAP and MSo + 0,5 Kinetin with 3 replicates. Shoots taka from results mikropropagasi grown in  vitro and has been irradiated with Co60 Gamma rays. Parameters tested were growth of shoots, amount of leaves, till, roots and wet weight taka. The results showed  that  Gamma radiation  Co60  and  plant  regulator  cytokinin  effect  on  shoots  taka, amount of tillers, leaf, root and wet weight taka. Keywords: Taka (Tacca leontopetaloides L.), Mikropropagation, Growth Hormone.
The Utilization Vigna radiata Extract, Coconut Water and Root-Up on The Growth of Bruguiera gymnorrhiza Seedlings Desi Melianawati; Erma Prihastanti; Sri Haryanti; Endah Dwi Hastuti; Felina Pranata Irawan
Jurnal Biodjati Vol 10 No 1 (2025): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v10i1.39354

Abstract

Mangrove forests are declining significantly. Hence, artificial rehabilitation through plant seedlings is necessary. However, failure often occurs due to the low quality of available seedlings. One solution to improve the seedling's quality is the application of growth regulators during mangrove rehabilitation. This study aimed to examine the effect of natural plant growth regulators, namely coconut water and V. radiata extract, as well as the synthetic plant growth regulator root up on the growth of Brugueira  gymnorrhiza seedlings. The research method employed was a Completely Randomized Design (CRD) with a single factor consisting of four treatments and five replications, as follows: P0 = Control, P1 = 100% coconut water, P2 = 10% root up, and P3 = 100% Vigna radiata extract. The observation parameters included plant height, number of leaves, root length, number of roots, stem diameter, and wet weight. Data analysis was conducted with ANOVA and Duncan's Multiple Range Test., natural plant growth regulators (PGRs) considerably improved the growth characteristics of Bruguiera gymnorrhiza seedlings compared to the control and synthetic PGR treatment (Root-Up) (p < 0.05). Among the treatments, Vigna radiata extract had the most impact, with the maximum plant height (51.2 cm), stem diameter (15.264 mm), number of roots (10.6), and fresh weight (33.8 g). Furthermore, the application of coconut water resulted in a considerable rise in the number of leaves, reaching an average of 5.8, as well as increased root elongation with an average length of 10.188 cm. In contrast, using root up at a 10% concentration resulted in no statistically significant improvement in any of the evaluated metrics.
Co-Authors A Amirudin Afiyatul Aini Agus Subagio Agus Subagyo Ahmad Fadhli Jundana Betalini Hapsari Darnia Astari Parastiti Desi Melianawati Dyah Ayu Kusuma Ningrum Endang Kusdiyantini Erma Prihastanti Evi Ari Parfiyanti Felina Pranata Irawan Hadyani M Hanifa Hesti Fajar Utami Imroatul Khasanah Linda Saputri Muhammad Lukman Hakim Nimas Disri Putri Novi Sultonia Farida Nuzula Muharrahmi Rini Budi Hastuti Rudhi Pribadi Ruli Nur Hidayanti Sarjana Parman Sri Haryanti Sri Widodo Agung Suedy Sutrisno Anggoro Titi Wulandari Tri Muji Ermayanti Tyagita Andarani