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INDONESIA
Agrotekno
Published by Universitas Udayana
ISSN : 2088647     EISSN : -     DOI : -
Core Subject : Agriculture,
Journal Agrotekno
Arjuna Subject : -
Articles 50 Documents
ANALISIS KELAYAKAN MODEL NAM (NEDBOR AFSTROMNINGS MODEL) UNTUK PREDIKSI KETERSEDIAAN AIR PADA DAS HO -, Sumiati; Tika, Wayan
Agrotekno Vol. 11, No. 2 Januari 2005
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This sudy was conducted at Ho Watershed which is located in Tabanan,Bali. The optimal parameter of the NAM model were CQOF = 0.27, Umax = 70,CLOF = 0.71, CLG = 0.45, CQIF = 0.001, CKBFU = 0.04, CLIF = 0.01, CKBFL =15, CK1 = 0.75, CBFL = 0.25, CK2= 0.50, L/Lmax = 0.8, and the initial value wereQIF2 + QOF2 = 3, U = 50, BFL = 0.001, BFU = 3.75, SM = 100.Verification of the model indicated that the NAM model was statisticallysuitable to be applied at Ho Watershed for prediction of water availability.
LIVER ANTIOXIDANT ENZYMES ACTIVITIES IN CHOLINE-DEFICIENT FEEDING RATS Ayu Nocianitri, Komang
Agrotekno Vol. 11, No. 2 Januari 2005
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Tujuan penelitian ini adalah untuk mengetahui pengaruh kolin defisiensi terhadapaktivitas enzim antiokasidant pada hati. Penelitian ini menggunakan tikus putih jenisWistar sebagai hewan percobaan yang diberikan pakan mengandung kolin 2,5 g cholinebitartrate /kg diet (CS) dan tanpa kolin (CD).Hasil penelitian menunjukkan bahwa total lipid, triacylglicerol, colesterol, danpospolipid pada hati meningkat dengan nyata pada CD. Kolin defisiensi (CD)menyebabkan menurunnya kandungan triacylglicerol, colesterol, pospolipid danmeningkatnya aktivitas enzim ornithine carbamoyltransferase pada serum. Aktivitasenzim superoxide dismutase, katalase, glutathione peroxidase dan kandungan ?-tocoperolpada hati menurun dengan nyata pada kolin defisiensi. Menurunnya aktivitas enzim dankandungan non-enzim antioksidan merupakan respon dari meningkatnya superoxideanion pada hati yang disebabkan oleh meningkatnya kandungan lemak hati. Disampingitu, meningkatnya aktivitas enzim ornithine carbamoyltransferase disebabkan karenameningkatnya kandungan triacylglicerol pada hati yang menandakan bahwa terjadikerusakan hati karena kekurangan kolin.
STUDI PERUBAHAN PROTEIN TERLARUT SELAMA PERKECAMBAHAN BIJI WIJEN (Sesamun indicum L.) MENGGUNAKAN PENDEKATAN RESPON SURFACE METHODOLOGY Suhendra, Lutfi
Agrotekno Vol. 11, No. 2 Januari 2005
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The research objective was to study the soluble protein change during process seedgermination. Seed sprout were made in dark room at the room temperature (30 0C) withseveral combination treatment of 3 factor in 5 levels for each factor. The factors are (i)duration of germination process; (ii) duration of soaking process; and (iii) pH of soakingsolution. The analysis of soluble protein was undertaken from extracted sprouts. Data wasanalysed by using the Respon Surface Methodology (RSM) with the central compositedesign (CCD). The research results indicated that the minimum of soluble protein (theincubation of 24 hour in temperature 50 0C with minimum value 4,54% wet weight) wasobtained from the process of 36 hours of germination process, 100 minute of soakingprocess and in pH of 5,65.
PENGARUH SUBSTITUSI STARTER YOGHURT DENGAN CAIRAN TAPE KETAN TERHADAP KARAKTERISTIK YOGHURT YANG DIHASILKAN Suriasih, Ketut
Agrotekno Vol. 11, No. 2 Januari 2005
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Fermented milk as yoghurt has already known worl wide. Consumers in Indonesiacan not accepted the acidity flavour of this yoghurt so much. Therfore substitution ofyoghurt sterter by tape culture filtrate could be taken since tape culture filtrate is sweet andhas arome that accepted so much by the Indonesian. Therefore, it is necessary to investigatethe concentration of substitution of yoghurt starter by tape culture filtrate to obtain theprefferred yoghurt. This experiment done to find out the effect of subsstitution of yoghurtstarter by tape culture filtrate on characteristics yoghurt obtained. A randomized blockdesign with 5 treatments and 2 replications was applied to this experiment Parametersobserved were pH, glocose and lactose consentration, texture, taste and overaal acceptanceof yoghurt obtained. The result showed that treatments significantly affect (P<0,05) the pH,glucose and lactose concentration, texture, taste and overall acceptance of the yoghurtresulted. And substitution of 50% yoghurt strter with tape ketan culture filtrate resulted themost likely yoghurt.
ISOLASI DAN IDENTIFIKASI RHIZOPUS OLIGOSPORUS PADA BEBERAPA INOKULUM TEMPE Ari Sandhi Wipradnyadewi, Putu; S. Rahayu, Endang; Raharjo, Sri
Agrotekno Vol. 11, No. 2 Januari 2005
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The research was aimed to isolate the fungi grown and to identify R. oligosporus inseveral tempe inoculum samples.Seventy microbes were isolated from tempe inoculum, which was consisted of 58greyish brown conidia, and 12 grey conidia isolates. All isolates were belong to genera ofRhizopus. Seven of them were selected based on their origin of tempe inoculum, conidiacolour, growth of mycelia, and conidia mass. Macroscopic and microscopic observationshowed that the selected isolates were R. oligosporus.
PENGARUH ETHANOL TERHADAP KESEPATAN BUAH SALAK Supartha Utama, I Made; P. Gunadnya, Ida Bagus; Wrasiati, Luh P.
Agrotekno Vol. 11, No. 2 Januari 2005
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Salak (Salaca edulis Reinw.) is one of Indonesia’s indigenous tropical fruits,which has given a priority being developed as one of an export horticulturalcommodity. One of problems which causes in difficulty of marketing of this fruit isthat it contains high concentration of tannin of which gives an astringent taste of thefruit. Therefore, this research has tried to reduce this taste by applying ethanolsolution and vapor to the intact fruits.The result indicated that by applying ethanol both as solution and vapour hassignificantly reduced the concentration of tannin of the salak fruit. Other beneficialeffects of ethanol were to increase the total soluble solid and reduce the acidity of thefleshy part of the fruit. All these effects could bring a new market development forsalak fruit. Further research, however, should be performed to identify the minimumconcentration of ethanol in the fleshy of the fruit to give significant reduction of thetannin and the threshold concentration of ethanol to give a taste of ethanol in thefleshy fruit.
STUDI TENTANG GETARAN DALAM HUMAN DISPLAY INTERFACE DAN PENGARUHNYA TERHADAP KELUHAN SUBYEKTIF OPERATOR DI PT ? EJ ? DENPASAR SELATAN. Sucipta, Nyoman
Agrotekno Vol. 12, No. 1 Februari 2006
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The aim of this research is to study the effect of vibration in human display interface on operator subjective complaint at PT ?EJ? in South Denpasar. Methods used in this research are observations and measurements on the operators and environmental conditions. Variables involved in this research are namely: the operators? age, weight and height, dry and wet bulb temperatures, humidity and noise level. The results showed that the average age, weight and height of the operators were 26,71 (? 7,13) years, 58 ,4 ( ? 1,1) kg, and 164, 14 (?3,43) cms respectively. The wet and dry bulb temperature were 26?C and 30?C. The humidity was 86 % and the noise level was > 80 dB. The operator complaints were: severe low backpain, pressure on breathing, feeling thirsty, tremor, feeling unhealthy and feeling stiff at the eyelid. The effect of vibration on human display interface depended on the operator position at work. The operators who were sit while working, vibration occurred at the axis of the seat. But, the workers who were standing while working, vibration occurred at 8-10 Hz resonance.
PENGARUH PENGEMASAN SECARA INDIVIDU MENGGUNAKAN PLASTIK FILM REGANG TERHADAP MUTU BUAH MANGGIS SELAMA PENYIMPANAN. S. Utama, I Made; G.M. Permana, I Dewa; G. Lidartawan, I Dewa Agung
Agrotekno Vol. 12, No. 1 Februari 2006
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The objective of this research was to study the effect of individual sealed packaging using stretching plastic film on quality of mangoesteen fruits with harvest index 4 and 5 during storage at room temperature (28 ?b 2oC) and at 5oC. Mangosteen fruits seal-packed individually using stretching plastic film is very beneficial since the packaging could extend the shelf life and maintain the fruit quality. The fruits with harvest index of 4 were better to be sealed individually with the plastic film as their shelf life were more than 24 days compare to the fruits with harvest index of 5 of which their shelf life were 20 days at room temperature. The result shows that mangosteen fruits were very sensitive to chilling injury which was indicated by the hardening of fruit shell. It was suggested that to prolong the shelf life of mangosteen fruits, the harvesting of mangoesteen fruits should be done on harvest index 4 and packaged them with stretching plastic film individually.
STUDI PERUBAHAN PROTEIN TERLARUT SELAMA PERKECAMBAHAN BIJI KORO BENGUK (MUCUNA PRURIENS L.) Suhendra, Lutfi
Agrotekno Vol. 12, No. 1 Februari 2006
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The research objective was to study the soluble protein change during process seed germination. Seed sprout were made in dark room at the room temperature (30 0C) with several combination treatment of 3 factor in 5 levels for each factor. The factors are (i) duration of germination process; (ii) duration of soaking process; and (iii) pH of soaking solution. The analysis of soluble protein was undertaken from extracted sprouts. Data was analysed by using the Respon Surface Methodology (RSM) with the central composite design (CCD). The research results indicated that the maximum of soluble protein (the incubation of 24 hour in temperature 50 0C with minimum value 9.78% wet weight) was obtained from the process of 8 days of germination process, 36 hours of soaking process and in pH of 6.
ABILITY OF DADIH AS PROBIOTIC SUPPLEMENT FOR SUPPORTING HEALTH CARE AT RURAL COMMUNITIES OF WEST SUMATRA. Sugitha, I Made
Agrotekno Vol. 12, No. 1 Februari 2006
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Dadih merupakan pangan fermentasi susu kerbau secara tradisional,dalam tabung bambu, rasa masam, kental dan enak. Di era globalisasi dadih menjadi popular karena mampu mengurangi kolesterol-darah (71,75%), dan menekan pertumbuhan kanker (27,83%). Saat ini penampilannya dikembangkan dengan NTG (mutagenic substance) untuk menghasilkan mutan Lactococcus lactis ssp. lactis yang meningkatkan ferformannya (menekan kanker = 72,51%). Sebelumnya, telah diakui mutan Lactococcus lactis ssp.lactis menghasilkan Bacteriocin-nisin yang menjaga kesehatan masyarakan pedesaan karena menghambat pertumbuhan mikoba-patogen (Escerichia coli=1,0; Staphylococcus aureus = 0,7; dan Salmonella thypii = 0,7) index mikroba. Untuk mengantisipasi rasa dadih terhadap selera konsumen, diversifikasi produk dadih telah dikembangkan, sehingga pemanfaatannya sebagai probiotik mampu meningkatkan kesehatan masyarakat.