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Yeni Yeni
Politeknik Negeri Lampung
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PENGGUNAAN SUBSTRAT WHEY TAHU UNTUK PRODUKSI BIOMASSA OLEH PEDIOCOCCUS PENTOSACEUS E.1222 Yeni, Anja Meryandini, dan Titi Candra Sunarti
Jurnal Teknologi Industri Pertanian Vol. 26 No. 3 (2016): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

Lactic acid bacteria (LAB) has been widely used as a starter culture. The most important factor fordeveloping industrial starter culture is the selection of a good and cheap medium. Tofu whey (TW) is the liquidwaste of the tofu production which potentially be able to use as a growth medium for LAB. On this research, TWwas fermented by Pediococcus pentosaceus E.1222 for 24 hour, at 37°C, pH 6, and without agitation. This workwas conducted in several stages, first stage was selection of carbon source and the result showed that TWsupplemented glucose gives the highest LAB number was 4.5×108 CFU/mL and spesific growth rate (μmax) 0.65h-1. The next stage was determining glucose concentration and the highest growth was TW supplemented 5%glucose, where the number of LAB reached 1.4×1010 CFU/mL and μmax 0.91 h-1. The next stage was scaling upthe starter production, fermentations were initially performed at scale 150 mL medium, then medium was scaledup to 500 mL and 1 L. The result showed a slight decreasing in number of LAB on each volume, from 1.1×1010CFU/mL (150 mL), 1.09×1010 CFU/mL (500 mL), and 1.03×1010 CFU/mL (1L); and declining of μmax is found tobe 0.91–0.90 h-1.Keyword: Lactic acid bacteria, starter culture, tofu whey, Pediococcus pentosaceus
Analysis of Soil Chemical Properties, Production, and Nitrogen Content of Pakcoy in Various Growth Media and Trichoderma Dosages Ratih Rahhutami; Aline Sisi Handini; Dwi Astutik; Yeni Yeni
Gontor Agrotech Science Journal Vol. 9 No. 1 (2023): June 2023
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v9i1.9885

Abstract

The use of compost added by Trichoderma is one of improving the soil's chemical properties and can be used to increase the production of pakcoy plants. The purpose of this study was to determine the effectiveness of compost derived from various types of palm oil waste and the application of Trichoderma on soil chemical properties as well as production and nitrogen content in pakcoy plants. This study used an experimental method with parameters observing plant fresh weight. The research used two factors. The first factor was three types of palm oil waste, midrib leaf, oil palm empty bunches, and solid decanter. The second factor was the dose of Trichoderma, 50 ml, 100 ml, and 150 ml per plant. Planting media derived from solid decanter was able to intensification the production of pakcoy compared to midrib leaf and oil palm empty bunches.
PERTUMBUHAN KAILAN (Brassica oleraceae) DENGAN PERLAKUAN MACAM MEDIA TANAM DAN PERBEDAAN VARIETAS PADA SISTEM HIDROPONIK DFT (Deep Flow Technique) Yeni Yeni; Ratih Rahhutami; Betari Safitri; Priyadi Priyadi
Agros Journal of Agriculture Science Vol 25, No 3 (2023): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

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Abstract

Kailan is a leaf vegetable that has high nutrition and economic value and can be cultivated using DFT hydroponic system to support its productivity. The aims of this study to determine the influence of the types of growing media and differences in varieties and the interaction of the two on the growth in DFT hydroponic system. The study used a factorial complete randomized design consisting of the first factor wass the variety, namely Winsa variety (V1) and Full White variety (V2), the second factor was the type of growing media, namely rockwool (M1), sponge (M2), coco fiber (M3), and coco chip (M4). The results showed there was no interaction between the variety and the growing medium but there was a significant result of variety on the height parameters. The growing medium showed a significant result on the number of leaves, relative growth rate, net assimilation rate, root shoot ratio, and wet weight of kailan plants parameters. Cocochip media and Winsa varieties provide the best growth of kailan plants in all observation parameters. 
Respon Pertumbuhan dan Hasil Pakcoy (Brassica campestris var. chinensis) Hidroponik pada Pemberian Konsentrasi Pupuk NPK dan Pupuk Daun Maudi Sugesti Junior; Rizka Novi Sesanti; Desi Maulida; Sismanto Sismanto; Fahri Ali; Yeni Yeni
Journal of Horticulture Production Technology Vol 1 No 1 (2023)
Publisher : Politeknik Negeri Lampung

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Abstract

Hydroponic crop cultivation generally uses AB mix nutrient. However, the expensive price of AB Mix nutrient caused increasing production costs. In addition to the expensive price, the availability of AB Mix is also limited. As an alternative, there is a need for more affordable fertilizer such as compound fertilizer and foliar fertilizer. The purpose of this study was to (1) determine the best compound fertilizer concentration to growth and yield of Pakcoy; (2) determine the best foliar fertilizer concentration to growth and yield of Pakcoy; (3) determine the interaction between compound and foliar fertilizer to growth and yield of Pakcoy. This study was used Split Plot Randomized Block Design consist 2 replicated. Main plot was compound fertilizer concentration and sub plot was foliar fertilizer concentration.The resulted of this study was (1) 2.5 g/L compound fertilizer concentration provide the best growth and yield of Pakcoy; (2) there was no significant effect of foliar fertilizer concentration; (3) there was no interaction between tho treatnments.
Induksi Akar pada Setek Batang Aglaonema sp. Var Siam Aurora dengan Pemberian IBA dan NAA Amalia Hartias Anggraini; Desi Maulida; Lisa Erfa; Rizka Novi Sesanti; Yeni Yeni; Sekar Utami Putri
Journal of Horticulture Production Technology Vol 1 No 2 (2023)
Publisher : Politeknik Negeri Lampung

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Abstract

Stem cutting propagation is commonly used to vegetative propagated of Aglaonema sp, however the growing roots has not been much growth. Nevertheless, the shoots that grow only one to three buds with the length of time shoots and roots appear is about 50-75 days after cuttings. It is all depends on the genotype of the Aglaonema sp. The aims of this study was to (i) determine the effect of IBA and NAA concentration in inducing roots of Aglaonema sp. Var Siam Aurora stem cuttings; (ii) to determine the interaction of IBA and NAA treatments to inducing roots of Aglaonema sp. Var Siam Aurora; (iii) determine the best combination of IBA and NAA to inducing roots of Aglaonema sp. Var Siam Aurora. The experimental design was Randomized Block Design (RBD) Factorial with the first factor is the IBA concentration; 0 mg.l-1(I0) and 1000 mg.l-1(I1). The second factor is NAA concentration; 0 mg.l-1(N0), 500 mg.l-1 (N1), 1000 mg.l-1 (N2), 1.500 mg.l-1 (N3)and 2000 mg.l-1 (N4) and resulting 10 combination treatments of IBA and NAA. The data was conducted with analysis of variance and followed by BNT test at 5% and the variable observed were root length, number of roots, first time of roots growth, first time of buds growth, the percentage of cutting stem. The result showed that the combination of IBA and NAA 1000 mg.l-1 give significant effect to inducing cutting stem of Aglaonema sp. Var Siam Aurora.
Karakteristik Gejala dan Tingkat Kejadian Penyakit Kuning Keriting Tanaman Cabai (Capsicum sp) dalam Budidaya Sistem Organik Dila Febria; Betari Safitri; Nanang Wahyu Prajaka; Yeni Yeni; Raida Kartina; Sekar Utami Putri
Journal of Horticulture Production Technology Vol 1 No 2 (2023)
Publisher : Politeknik Negeri Lampung

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Abstract

Organic chili cultivation has become a necessity nowadays as awareness increases about the dangers of chemical residues used in conventional cultivation practices. Chili is one of three main of vegetables commodities in Lampung. However, pepper yellow leaf curl disease is still a major obstacle faced by farmers to increase chili productivity. Therefore, the aim of this research is to study the characteristics of symptoms and the incidence rate of pepper yellow leaf cull disease of Capsicum annuum L. and Capsicum frutescens in organic cultivation practice. The results shown that the characteristics or early symptoms of pepper yellow leaf curl disease on chilies are yellowing of young leaves, mosaic and malformation which are found in C. annuum L and C. frutescens. The intensity of disease attacks on chili plants by giving POC from the Mimosa pudica roots (PM) gave positive efect with an average low attack intensity in the 8th week, namely 32% compared to giving POC from bamboo roots (AB) with an average attack intensity 45.5%. This indicates that POC from the roots of Mimosa pudica (PM) is capable of being a bioprotectant for chili plants. The application of POC type 3 also provided a positive response with a low intensity of pepper yellow leaf curl disease on C. frutescens.
Pengaruh Media Tanam Campuran Serbuk Bambu dan Serbuk Kayu Terhadap Pertumbuhan dan Hasil Jamur Tiram (Pleurotus ostreatus) Safitri, Nida Aulia Inka; Ali, Fahri; Yeni, Yeni; Kartina, Raida; Maulana, Erie; Prajaka, Nanang Wahyu; Tiara, Dede
Journal of Horticulture Production Technology Vol 2 No 1 (2024)
Publisher : Politeknik Negeri Lampung

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Abstract

Oyster mushroom is a commodity that is in high demand in the community. Oyster mushroom production in Indonesia is decreasing year after year as wood sawdust, which is often used as a media for oyster mushrooms, becomes increasingly difficult to get. Bamboo has a nutrient content similar to wood sawdust; therefore, bamboo sawdust can be utilized as a media for growing oyster mushrooms. The aim of this research was to find the best mixture of bamboo and wood sawdust for the growth and yield of oyster mushrooms (Pleurotus ostreatus). This research was carried out from July to October 2023 at Lampung State Polytechnic. This study used a randomized block design with one factor that was repeated four times. The following treatments were used: C0 = 100% wood sawdust, C1 = 90% bamboo sawdust + 10% wood sawdust, L2 = 80% bamboo sawdust + 20% wood sawdust, C3 = 70% bamboo sawdust + 30% wood sawdust, C4 = 60% bamboo sawdust + 40% wood sawdust, and C5 = 50% bamboo sawdust + 50% wood sawdust. The collected data was analyzed using analysis of variance (ANOVA) and then evaluated with LSD test at the 5% level. The results of this research were that the treatment of C5 = 50% bamboo sawdust + 50% wood sawdust gave the best results on the parameter of the mycelium growth rate, the time of the fruit body initiation (FBI), the number of hoods, the diameter of the hood, the thickness of the hood, the harvest, the harvest weight per baglog, and the total harvesting per plot.
Produksi Nutrisi Hidroponik ABC Mix Hayati Sesanti, Rizka Novi; Ali, Fahri; Darma, Wika Anrya; Tiara, Dede; Rahhutami, Ratih; Yeni, Yeni; Prajaka, Nanang Wahyu; Febria, Dila; Safitri, Betari; Hamiranti, Rahmadyah; Putri, Sekar Utami; Maulida, Desi
Journal of Horticulture Production Technology Vol 2 No 1 (2024)
Publisher : Politeknik Negeri Lampung

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Abstract

ABC mix biological hydroponic nutrition is an innovation by developing the AB Mix hydroponic nutrition formulation (based on 100% chemicals) in collaboration with Liquid Organic Biofertilizer/LOB from LOB Plant PT. Great Giant Pineapple (PT.GGP). This invention is created in order to solve the problem of industries that want to produce hydroponic nutrients based on liquid organic biological fertilizer to reduce the concentration of chemicals in hydroponic nutrients. The aim of this invention are (1) to develop hydroponic nutrient products consisting of chemical fertilizers and biological fertilizers so that the use of chemicals can be reduced, (2) to produce patents granted regarding hydroponic nutrition based on chemical fertilizers and biological fertilizers, and (3) to apply the results of the invention to society and industry that requires the invention. The ABC Mix biological hydroponic nutrition product already has a patent with number IDS000006120 and has been implemented at Miftahul Huda Islamic Boarding School 606 through community service activities.
Effectiveness of Molasses, Washed Rice Water, and Coconut Water in Baglog Media on Production of White Oyster Mushroom (Pleorotus ostreatus) Ali, Fahri; Yeni, Yeni; Rahhutami, Ratih; Darma, Wika Anrya; Sesanti, Rizka Novi
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): March 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i1.6697

Abstract

Pleourotus ostreatus, well known as an white oyster mushroom is  the most popular edible mushroom in Indonesia. Baglog (sawdust as main substrat) is usually used to cultivating them. In the cultivation, it often occurs that the growing media in the baglog is not able to support the growth of oyster mushroom optimally. It is possible to add some supplements in the middle of cultivation period. The study aims to obtain information on the potential of molasses, washed rice water, and coconut water as nutritional supplements in white oyster mushroom cultivation to increase the production of it. This research was conducted from August to December 2022 at mushroom plant house (kumbung), Lampung State Polytechnic. This research used descriptive method with couple of parameter, like yield and form of white oyster mushroom. The results of this study shown that washed rice water can be used as supplement materials and has given the highest of white oyster mushroom yield (90.008 g). followed by coconut water (63.661 g), and molasses (51.102 g). On the other hand, the addition of washed rice water affect in productivity period if compared to molasses and coconut water addition.
The Effect of AB Mix Nutrient Formulations on The Growth and Yield of Several Red Chili Varieties in Hyroponics System Ali, Fahri; Tiara, Dede; Rahhutami, Ratih; Yeni, Yeni; Kartina, Raida; Winata, Winata
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Abstract

Hydroponics is one of the options of red chili peppers (Capsicum annuum L.) cultivation. Formulation of nutrientsolutions can be done by combining several chemical fertilizers to obtain a complete nutrient content at more cost-effective and readily accessible. The study used factorial randomized block design (RBD) in split splot. The master plots were four AB Mixformulations, F1: P (75 ppm) K (402 ppm) Ca (150 ppm) Mg (60 ppm) and S (90 ppm), F2: P (105 ppm) K (432 ppm) Ca (180ppm) Mg (90 ppm) and S (120 ppm), F3: P (135 ppm) K (462 ppm) Ca (210 ppm) Mg (120 ppm) and S (150), F4: P (165 ppm) K(492 ppm) Ca (240 ppm) Mg (150 ppm) and S (180 ppm). The subplots were 3 chili varieties; Kitavi variety (V1), Akar variety(V2) and CK F1 variety (V3). The results showed that AB Mix F4 formulation produced enhanced performance in plant height,stem diameter, crown width and fruit diameter. The use of CK curly red chili varieties exhibited better performance in theparameters of plant height, stem diameter, crown width and flowering age than the Kitavi dan Akar varieties. The AB Mix F4nutrient formulation and the use of CK curly red chili varieties are the best combination for plant growth in the variables of plantheight, stem diameter and crown width.
Co-Authors Ali, Fahri Amalia Hartias Anggraini Betari Safitri Betari Safitri Desi Maulida Dwi Astutik Fahri Ali Febria, Dila Hamiranti, Rahmadyah Handini, Aline Sisi Lisa Erfa Maudi Sugesti Junior Maulana, Erie Prajaka, Nanang Wahyu Priyadi Priyadi Putri, Sekar Utami Rahhutami, Ratih Raida Kartina Rizka novi sesanti Rizka Novi Sesanti Safitri, Betari Safitri, Nida Aulia Inka Sismanto Sismanto Tiara, Dede Wika Anrya Darma, Wika Anrya Winata, Winata