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Proceeding of International Conference on Biology Education, Natural Science, and Technology
Published by Universitas Muhammadiyah Surakarta
ISSN : 30265428     EISSN : 30265428     DOI : https://proceedings.ums.ac.id/index.php/incobest
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Education Physics
International Conference on Biology Education, Natural Science, and Technology is a prestigious global conference that brings together researchers, educators, practitioners, and policymakers to facilitate the exchange of ideas and the sharing of best practices in biology education, natural science, and technology.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 128 Documents
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Quality of Kefir Combination Between of Goat's Milk and Skim Milk on Variations of Sugar and Fermentation Duration Kurniawati, Erna; Suryani, Titik
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Kefir is a probiotic bevarage produced by live lactic acid bacteria. One of the innovative ingredients for kefir is goat's milk, skim milk, and variations of sugar (cane sugar and palm sugar). The nutritional content of goat's milk is 2.2% protein, 14.7% fat, and 3% fiber, and 4.80% lactose. The addition of skim milk in the manufacture of kefir can increase the total sugar content. The addition of sugar as a source of nutrition for kefir grain starter bacteria. The purpose of this study was to quality of kefir combination between of goat’s milk and skim milk on variations of sugar and fermentation duration. This study used an experimental method and a completely randomized design (CRD) with two factors. The first factor is the variations of sugar (A) palm sugar and cane sugar. Factor II (B) is the variations of fermentation duration for 24 hour, 36 hour, and 48 hour. The results showed that the best total kefir acid content combined with goat milk and skim milk was 0.797%, pH 4 in the A2B1 treatment (30 g cane sugar + 24 hour of fermentation duration). The best organoleptic quality was in the A2B1 treatment (30 g cane sugar + 24 hour of fermentation duration) with a sour taste, white color, tasty flavour, and soft texture.
Quality of Herbal Tea Combination Between Corn Silk and Stevia Leaf on Variation of Temperature and Drying Duration Nafiza, Feny; Suryani, Titik
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Herbal tea combination between corn silk and stevia leaf is a functional drink for health and refreshment. Corn silk contains antioxidant compounds or flavonoids that lower blood glucose levels. Stevia leaf as a natural sweetener contain stevioside, rebaudioside A, rebadioside C, and dulcoside A which are 200 to 300 times sweeter than sucrose. The aim of this study was to know the levels of glucose, antioxidant activity, and organoleptic quality of herbal tea combination between corn silk and stevia leaf with variations of temperature and drying duration. The study used experimental methods and a complete random design (crd) of two factors, factor I drying temperature 45 °C and 50 °C, factor II drying duration 2 hours and 4 hours. The results of the study showed the highest glucose of herbal tea combination between corn silk and stevia leaf on S2L2 (drying temperature 50 °C and drying duration 4 hours) is 7,212 g/100 g. The optimum antioxidant activity and best organoleptic quality of herbal tea on S1L1 (drying temperature 45 °C and drying duration 2 hours) was 83,696 % and yellow color, sweet taste, herbal tea characteristic scent, and respectively.
Isolation and Identification of Soil Bacteria in Pracimaloyo Public Cemetery, Kartasura Adityaradja, Bagas; Tyastuti, Erma Musbita; Sidiq, Yasir; Rahayu, Triastuti
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

In The Pracimaloyo Public Cemetery, the body’s decomposition occurs continuously, producing soil nutrients and minerals that affect the growth of bacteria. Bacterial population data from the cemetery area is still very limited, whereas cemeteries hold the risk of contamination with pathogenic bacteria. This research aims to find out how the population and diversity of bacteria in the Pracimaloyo Public Cemetery. Soil samples were taken from the Pracimaloyo cemetery at 2 locations (blocks 8 and 18), each at 20 and 50 cm depth. Soil samples are inoculated in Nutrient Agar media using the spread plate method. After 48 hours, colony counting, colony morphology, and gram staining observations were carried out. The rate of soil bacterial populations in blocks 8 and 18 at a depth of 20 cm was 4.23 × 107 CFU/g and 9.79 × 107 CFU/g, while at depths of 50 cm, it was 1.94 × 107 CFU/g and 1.92 × 107 CFU/g. The morphology of the bacterial colonies is dominated by circular shape, entire margin, flat elevation, and white color. 20 isolates are gram-negative and 16 isolates are gram-positive, the cell form is dominated by the bacillus.
LOF Kirinyuh Leaves and Liquid Waste Tempeh with Pineapple Peel Bioactivator: Sensory and Macronutrient Content Sekaringsih, Nur Jati; Asngad, Aminah
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Liquid organic fertilizer is a liquid organic material that contains plant nutrients. Using liquid organic fertilizers can satiate the nutritional needs of plants and reduce the application of chemical fertilizers, which if used for an extended period, can damage the soil's organic structure. The purpose of this study is to determine the quality of liquid organic fertilizer made from kirinyuh leaves and tempeh liquid waste by adding a bioactivator derived from pineapple rind. The method applied is experimental, and use Completely Randomized Design with two factors. The first component is a mixture of kirinyuh leaves and tempeh effluent (K1=168 ml: 82 ml, K2=82 ml: 168 ml), and the second component is a bioactivator derived from ananas peel (B1=100 ml, B2=150 ml). Utilizing two-way ANOVA, qualitative and quantitative descriptive data research was conducted. Our field experiments showed that the N content was the highest in the treatment of K1B2 (1.02%), the P content was higher in the treatment of K2B1 (0.06 %), as well as the K content was highest in the treatments of K2B1 and K2B2 (0.10 %). The sensory quality of the average liquid organic fertilizer is brown, has a tapai aroma, and has a pH 4.6 – 5.
Glucose Levels and Organoleptic Quality Probiotic Tepache of Pineapple Peel on Variation of Sugar and Fermentation Duration Sabira, Qurota Ayuni Nuha; Suryani, Titik
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The probiotic beverage tepache is a variety of natural or processed functional products that contain bioactive compounds with specific physiological functions for health. Pineapple peel is one of the plant base ingredients that can be used as a base for probiotic beverages. The levels of antibacterial compounds, carbohydrates, and sugars in pineapple peel are sufficient to be an essential medium for the growth of Lactic Acid Bacteria (LAB) in probiotic beverages. This research was aimed to determine the glucose levels and organoleptic quality of probiotic beverages tepache of pineapple peel on variation of sugar and fermentation duration. This research used experimental method Completely Randomized Design (CRD) with two-factors, Factor 1 was variation of sugar (G) palm sugar and granulated sugar. Factor 2 was the variation of fermentation duration (F) 3 and 5 days. The results of the research showed that the tepache of pineapple peel had the highest glucose levels in the treatment of G1F1 (palm sugar 100 g with 3-days fermentation duration) at 12,2 %. The best organoleptic quality of tepache pineapple peel was in G2F1 treatment (granulated sugar 100 g with 3-days fermentation duration) with light yellow color, tepache-specific aroma, and sour flavor.
Empowerment of Animalia Classification Material: A Review of Literature Puti, Tunjung Nala; Karyanto, Puguh; Fatmawati, Umi
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

This article is a literature review that discusses the characteristics of animal classification as biology learning material. Animalia classification material is one of the materials that are difficult for students to understand. So the purpose of this literature review is to analyze the characteristics of Animalia classification material to determine and find the right way of empowerment so that students can receive the material well. The method used is a systematic literature review (SLR) with PRISMA guideline, reviewed from 2013-2023 with certain criteria. The literature obtained based on these criteria obtained as many as 150 articles from Google Schoolar, Scopus, and Web of Science, but after analysis based on abstracts, keywords, research methods, and discussion, 21 articles were finally selected. The results of the literature review show that Animalia classification material can be empowered with a learning model that is collaborative learning combined with online visual media. One of the learning innovations that can be used is project-based learning in online media.
Quality of Herbal Tea Combination Between Corn Silk and Mint Leaf in a Variation of Temperature and Drying Duration Husna, Imroatul; Suryani, Titik
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Corn silk has high antioxidant activity so that with a combination of mint leaf it can be made into herbal tea which is beneficial for health. This research aims to determine the antioxidant activity and organoleptic quality of herbal tea combination between corn silk and mint leaf in a variations of temperature and drying duration. The method in this research used a completely randomized design (CRD) with 2 factors, factor 1 were drying temperature (J) (45 °C, 50 °C, and 55 °C) and factor 2 were drying time (K) (2 hours and 4 hours). The results of this study showed that the highest antioxidant activity of the herbal tea combination between corn silk and mint leaf on J₁K₂ treatment (temperature 45 °C and drying time 4 hours) of 85.375 %, while the best organoleptic quality of herbal tea between corn silk and mint leaf was in the J₁K₁ treatment (temperature of 45 °C and drying duration of 2 hours) with a fresh taste, mint tea aroma, and yellowish color.
Number of Erythrocytes of White Rats (Rattus norvegicus) Sonded with a Combination of Porang Tuber and Moringa Leaf Extract Anggitasari, Alya; Setyaningsih, Endang
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Overcoming obesity which is increasing in the pandemic era. Obesity or overweight is an abnormality in the amount of body weight that results in excessive accumulation of body fat and can pose a risk of other diseases. This also affects the supply of the number of erythrocytes that enter the body. This study aims to determine the number of erythrocytes of obese white rats (Rattus norvegicus) that were sounded with a combination of pouring tuber glucomannan (Amorphophallus mulleri Blume) and moringa leaf extract. This research method used a true experimental which was prepared using a Completely Randomized Design (CRD) in the form of a Posttest Only Control Design. The data obtained were analyzed using One Way ANOVA SPSS version 20 followed by the DMRT test. The results of this study indicated that the combination of pouring tuber glucomannan and moringa leaf extract affected increasing the number of erythrocytes in obese white rats. Administration of pouring tuber glucomannan and moringa leaf extract increased the number of erythrocytes, with the order of increasing P7 (60:40), P5 (80:120), and P3 (100:100). With these results, it can be concluded that the combination of pouring tuber with moringa leaf extract is effective in increasing the number of erythrocytes in obese people.
Pakcoy (Brassica chinensis L.) Growth Using Moringa Leaf Extract with the Addition of Red Onion Skin Widjaya, Dwi Putri; Suparti, S
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Pakcoy is a vegetable that contains carbohydrates, fat, Fe, P, Ca, vitamins A, B, C, E, and K. moringa leaves and shallot skin are one of the organic wastes that can be used as additional media for plants. The purpose of the research is to identify the effect of moringa leaf extract and shallot skin on the growth of pakcoy plants. This research used a CRD (completely randomized design) with 1 factor 4 repetitions. The factors used were extract of moringa leaved and shallot skin which included P0=0% concentration, P1=20% extract concentration, P2=40% extract concentration, P3=60% extrac concentration. Parameters observed wre plant height and number of leaves. Data were examined with the non-parametric Statistical test, namely the Kruskal Wallis and continued with Duncan’s Multiple Range Test to determine the best growth and yield in that treadment. The results of data analysis showed that the best treatment. The results of data analysis showed that the best treatment for pakcoy growth was in treatment P1 with an average plant height of 7.725 cm and average number of leaves of 2.5 leaves. The lowest treatment of pakcoy growth was in treatment P3 with an average plant height of 4.875cm and average number of leaves of 0.25.
Mustard (Brassica Juncea L.) Growth Hydroponically Using AB-Mix and Liquid Organic Fertilizer Tea Pulp Trisnawati, Dinda Putri; Suparti, S
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2023: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Mustard greens are vegetables that have a high potential to be cultivated and contain nutrients. Hydroponics is an alternative to the cultivation of mustard plants. AB Mix and liquid organic fertilizer are nutrients to increase plant productivity. In addition, the content of tea pulp can help plant growth. This study was conducted to determine the effect of AB Mix concentration and tea pulp liquid organic fertilizer on mustard growth hydroponically. The study used a Complete Randomized Design in an experimental setting with four different AB Mix nutrient combinations treatments and tea pulp liquid organic fertilizer in the form of V0 (control), V1, V2, and V3. Each treatment is repeated four times. The results showed that the concentration of AB Mix and liquid organic fertilizer tea pulp affected the growth of mustard plant height, number of leaves, and wet weight of mustard plants. The greatest treatment on V2 has a plant height of 14 cm, lots of leaves 7 strands, and a wet weight of 5.8 g.

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