BIOMETRIC

Skrining Fitokimia Ekstrak Temulawak (Curcuma xanthorrhiza), Temu Hitam (Curcuma aeruginosa) dan Jintan Hitam (Nigella sativa)

2023-07-15T00:35:12+00:00

Plants as herbal medicines in the form of traditional medicine have been recommended by the World Health Organization (WHO) for the treatment of cancer and degenerative diseases. The purpose of this study was to determine the yield value and compounds of secondary metabolites from temulawak (Curcuma xanthorrhiza), black turmeric (Curcuma aeruginosa) and black cumin (Nigella sativa) extracts. The maceration process uses distilled water for 3x24 hours. The results of this study showed that the % yield sequentially on temulawak, black rhizome and black cumin was 11.65%; 3.69% and 6.60%. The phytochemical test qualitatively showed positive for flavonoids, alkaloids, steroids, tannins and saponins

Pengaruh Zat Pengatur Tumbuh Ekstrak Bawang Merah (Allium cepa L.), Air Kelapa, dan Kombinasinya Terhadap Pertumbuhan Tanaman Peppermint (Mentha piperita L.)

2023-07-15T03:59:35+00:00

Peppermint plants can be used as medicine, cosmetic ingredients, to add aroma and taste to food and drinks. Therefore, efforts need to be made to increase the growth potential of stem cuttings, so natural growth regulators are needed that are effective for the formation of new shoots, roots and leaves. The aim of this research is to determine the influence and optimum concentration of growth regulators of shallot extract, coconut water, their combination on the growth of peppermint plants (Mentha piperita L.). This method uses a completely randomized design (CRD) with 6 treatments and 4 repetitions. The research results were analyzed using the One Way Anova test using the Post Hoc test, there was a significant influence on the growth of peppermint plants on the parameter number of leaves in the K5 treatment (a combination of 41% shallot extract + 100% coconut water), namely 53.75 strands and the number of roots in the K3 treatment ( 41% red onion extract, namely 32.25, root length parameters for treatment K2 (Rootone-f 100 ppm) and K5 (Combination of 41% red onion extract + 100% coconut water) namely 27.75 cm

Perilaku Harian Babun Hamadryas (Papio hamadryas) dalam Konservasi Ex-Situ di Kebun Binatang Surabaya

2023-07-17T04:59:27+00:00

Hamadryas baboons (Papio hamadryas) are distributed throughout the mountainous regions of northeastern Africa and southwest Arabia. Once distributed the Hamadryas baboon was widespread but gradually its distribution decreased and it was considered to be of least concern. This requires ex-situ conservation by knowing the daily behavior of the primate species Papio hamadryas to support the success of ex-situ conservation efforts so as to increase population numbers. The method used is observing behavioral patterns which include eating patterns, sleeping patterns, social activity patterns, and movement patterns from visual observations of changes in the activity of Hamadryas baboons carried out directly with the help of an image recording device, namely a handycam. The primates observed consisted of 4 individuals, including the alpha baboon, 1 female baboon, 2 female baboons, and 3 female baboons. The results obtained after observation were 248 male behaviors and 228 female baboons behaved the least, so it can be concluded that Male baboons are more active than females. And the behaviors obtained are eating, moving, social, resting and playing alone.

Penggunaan Media Pemupukan Terhadap Pertumbuhan Rumput Gajah Taiwan (Pennisetum purpureum cv. Taiwan)

2023-07-18T03:09:53+00:00

Forage grown in Indonesia can increase plant growth in terms of quality and quantity on less productive land through the level of fertilization media application. The proper fertilization medium is the process of adding nutrients to the soil to produce sufficient forage, such as Taiwan elephant grass (Pennisetum purpureum cv. Taiwan). Fertilization can potentially be used from organic fertilizers and inorganic fertilizers. This study aims to determine the effect of the best response of cow manure, urea, and its combination on the growth of Taiwan elephant grass (Pennisetum purpureum cv. Taiwan). The method used to identify fresh ingredients from Taiwan elephant grass (Pennisetum purpureum cv. Taiwan) and determine the N, P, and K content of cow dung and urea was tested at the Industrial Research and Consulting Laboratory, Surabaya. The results of this study in the P4 treatment using 50 grams of cow manure and 50 grams of urea gave the best effect on the response of Taiwan elephant grass to plant height, number of tillers, fresh weight and dry weight.

Uji Toksisitas Air Limbah Deterjen Terhadap Larva Artemia salina Leach Dengan Metode Brine Shrimp Lethality Test (BSLT)

2023-07-18T09:56:19+00:00

Detergent waste water contains ABS (Alkyl Benzene Sulphonate), classified as a detergent which can cause environmental pollution and difficult to decompose ecosystems in the waters. This study aims to test the toxicity of detergent waste against Artemia salina Leach larvae and determine the LC₅₀ value. The study was conducted using a completely randomized design of 5 groups with 10 Artemia salina Leach larvae in each group with three repetitions. The concentrations used were 0 mg/mL, 10 mg/mL, 50 mg/mL, 500 mg/mL and 1000 mg/mL. Mortality observation of Artemia salina Leach larvae was carried out with 3 replications at 6 hours, 12 hours, 24 hours and 48 hours. At a concentration of 0 mg/mL there was no death in the larvae either at 6 hours, 12 hours, 24 hours and 48 hours. At concentrations of 10 mg/mL, 50 mg/mL, 500 mg/mL and 1000 mg/mL resulted in the lowest mortality rate for larvae at 6 hours with successive results of 0%, 10%, 30% and 40% while the The highest mortality was in larvae at 48 hours with successive results of 50%, 50%, 66%, 67% and 100%. The results showed that the probit analysis obtained an LC₅₀ value at 24 hours of 0.004132 mg/mL, while at 48 hours it was 0.00135706 mg/mL.

Keanekaragaman Kupu – kupu (Rhopalocera) di Taman Flora Surabaya

2023-07-20T02:11:54+00:00

Taman Flora is one of the city parks in Surabaya City parks have an important role for the urban ecosystem. City parks are needed for interaction space between humans and the environment as well as a living space for flora and fauna, especially butterflies. Research on butterfly diversity is very important because the related data is still not comprehensive from various regions of Indonesia. This study aims to determine the level of diversity of butterflies as well as abiotic conditions in Taman Kota Surabaya. The data collection method combines the transect method and the VES (Visual Encounter Survey) method by tracing existing roads as well as counting and recording the number of species and individuals encountered. Butterflies that were found in the study were 12 species from 3 different families with a total of 178 individuals. The results of the butterfly diversity index were (H’) = 2.33, evenness (E) = 0.94, dominance (C) = 0.11. The abiotic factors at Taman Flora were classified as optimal, the temperature 29,6-30,9 °C the humidity 71-84% and light intensity 18342-22976 lux so that the environmental conditions at that location were good for the survival of the butterflies. The most commonly found species is Eurema hecabe and Leptosia nina.

Analisis Keragaman Makrozoobentos Sebagai Bioindikator Kualitas Perairan Kali Pacal, Kabupaten Bojonegoro

2023-07-20T06:07:52+00:00

Rivers are the most important source of water after wells for humans. Rivers are inland water ecosystems that are directly related to humans. Various community activities around the river can result in physical, chemical and biological changes in the waters. The purpose of this study was to determine the diversity of macrozoobenthos and to determine Family Biotic Index in the Pacal River, Bojonegoro District. The type of research used in descriptive exploratory sampling method. The research was conducted in February – March 2023 by dividing the location into three stations with various habitat types. the data obtained was then identified and analysed using the Shannon-Wiener Index (H’), Evenness Index (E), Dominance Index (D), and Family Biotic Index (FBI). Based the observation, there were 8 species of macrozoobenthos with the two most species of being Pleurocera and Tubifex. The highest level of macrozoobenthos diversity was found in station 1 is H’=1,20. The highest evenness index in station 1 is E=0,67. The highest dominance index in station 3 is D=0,90. The highest Family Biotic Index in station 3 is FBI=7,89 which indicates that the waters at that station are heavily polluted by organic matter.

Peranan Ekstrak Teh (Camellia sinensis) sebagai Imunomodulator

2023-07-21T15:24:34+00:00

This article reviews the immunomodulatory activity of various types of tea according to various literatures, then summarizes the modulation mechanism of the active compounds contained in these extracts on immune cells. Particular emphasis is given to summaries of recent studies highlighting the types of active compounds and their impact on immunity. The results showed that the content of metabolites in tea extracts can be immunomodulators by influencing immune cells against incoming antigens.

Pengaruh kombinasi pupuk kandang dan pupuk NPK terhadap pertumbuhan tanaman tomat cherry (Solanum lycopersicum var. cerasiforme)

2023-08-12T11:56:05+00:00

The use of inorganic fertilizers without being balanced with organic fertilizers can have a negative impact on soil nutrients absorbed by plants. Therefore, a study was conducted on the effect of a combination of manure and NPK fertilizer on the growth of cherry tomato plants (Solanum lycopersicum var. cerasiforme). This study aims to determine the effect of a combination of manure and NPK fertilizer on plant height and number of leaves on the growth of cherry tomato plants. The research method used was an experiment with a completely randomized design (CRD) consisting of 2 factors which were repeated 3 times. The first factor was giving POC doses with 4 levels, namely K0 = control, K1 = POC 4 ml/L, K2 = POC 8 ml/L, K3 = POC 12 ml/L. the second factor was the administration of NPK doses with 4 levels, namely N0 = control, N1 = NPK 20 g/L, N2 = NPK 25 g/L, N3 = NPK 30 g/L. parameters were observed for 12 weeks after planting. Data were analyzed using the One Way Anova test and the Kruskal-Wallis test with insignificant results, but optimal results were obtained for each parameter. The results showed that the N1K1 combination treatment gave optimal results for tomato plant height (148.33 cm). The N0K2 treatment gave optimal results on the number of leaves of tomato plants (144 leaves).

Uji Efektivitas Ekstrak Daun Jambu Biji Daging Buah Putih (Psidium guajava L.) sebagai Antibakteri Vibrio parahaemolyticus secara In Vitro

2023-11-05T13:19:30+00:00

Vibrio parahaemolyticus is a bacterial pathogen that can threaten the survival of marine organisms and cause gastroenteritis in humans. Initially, the spread of bacteria can be overcome by administering synthetic antibiotics. However, many abuses of these antibiotics can lead to bacterial resistance and residues in the aquatic environment so that natural ingredients are needed that can reduce side effects, such as guava leaves with white flesh (Psidium guajava L.). The purpose of this study was to determine the effectiveness of guava leaf extract with white flesh as an antibacterial against Vibrio parahaemolyticus in vitro. This research was a true experimental study consisting of 4 concentration treatments and 2 control treatments with 4 replications. Data analysis used the Kruskal Wallis test and the Mann Whitney test. The results showed that the four concentrations had the potential to inhibit bacterial growth with a diameter of 6.25 mm, 7.875 mm, 8.75 mm and 10.85 mm respectively with medium and strong inhibition responses. However, the four concentrations did not show bacterial growth of less than 50 colonies and did not show any negative colony growth so the conclusion of this study was guava leaf extract with white pulp has effectiveness in inhibiting the growth of Vibrio parahaemolyticus bacteria but cannot kill the bacteria.