Zulkarnain Zulkarnain, Suprapto Suprapto, Tony Cortis Maigoda
Allah provides information about the fig plant in Surah At-Tin verse 1. The fig plant is a special plant that is specifically mentioned in the Quran and is widely used for human health such as preventing hypertension, maintaining heart health, and treating diabetes. The fig plant is a plant that has many chemically active compounds that are useful in medicine. This study aims to determine the content of the surah At-Tin verse 1 and identify the features of the fig plant from the perspective of plant phytochemicals. The results showed that Allah swore by the name of the fig plant in Surah At-Tin verse 1. This indicates that there are many blessings on the fig plant for human life. Phytochemical test results showed that the fig plant has chemical compounds that are beneficial to human health such as flavonoids, alkaloids, phenolics, terpenoids, and saponins. These compounds act as anti-oxidants, function in the detoxification of toxins, prevent cancer, regulate the stability of the body's metabolism, and scavenge radicals that enter the body. The fig plant has a high economic value. The cultivation of fig plants is a good economic commodity for the welfare of society. Figs can be processed into products that sell well in the market.
{"title":"LITERATURE REVIEW OF PHYTOCHEMICAL PROPERTIES OF FIG (Ficus Carica L) IN SURAH AT-TIN VERSE 1","authors":"Zulkarnain Zulkarnain, Suprapto Suprapto, Tony Cortis Maigoda","doi":"10.22373/lj.v11i2.20453","DOIUrl":"https://doi.org/10.22373/lj.v11i2.20453","url":null,"abstract":"Allah provides information about the fig plant in Surah At-Tin verse 1. The fig plant is a special plant that is specifically mentioned in the Quran and is widely used for human health such as preventing hypertension, maintaining heart health, and treating diabetes. The fig plant is a plant that has many chemically active compounds that are useful in medicine. This study aims to determine the content of the surah At-Tin verse 1 and identify the features of the fig plant from the perspective of plant phytochemicals. The results showed that Allah swore by the name of the fig plant in Surah At-Tin verse 1. This indicates that there are many blessings on the fig plant for human life. Phytochemical test results showed that the fig plant has chemical compounds that are beneficial to human health such as flavonoids, alkaloids, phenolics, terpenoids, and saponins. These compounds act as anti-oxidants, function in the detoxification of toxins, prevent cancer, regulate the stability of the body's metabolism, and scavenge radicals that enter the body. The fig plant has a high economic value. The cultivation of fig plants is a good economic commodity for the welfare of society. Figs can be processed into products that sell well in the market.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"25 32","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139147762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study titled "Application of Read-Answer-Discuss-Explain-Create (RADEC) Model on Buffer Solution Material at SMAS Inshafuddin Banda Aceh " aims to explain activities, analyze learning results, and describe student responses. This qualitative descriptive study was carried out at SMAS Inshafuddin, with 20 participants chosen through purposive sampling from class XI IPA 1. Observing activities, learning outcome exams, and student response questionnaires on the RADEC learning model were used to collect data. The data analysis technique for student activities was collected by giving observers observation sheets, learning outcomes were obtained by giving them multiple-choice questions, and student responses were obtained by giving them a questionnaire. Data analysis revealed that student actions in the first meeting were 78.8% in the good category, 85.98% in the good category in the second meeting, and 92.86% in the very good category in the third meeting. In the good group, the completeness of student learning outcomes was 77.8%. The very good category received 92.25% of the student responses. Based on the study's findings, it is possible to infer that student activities have improved, student learning outcomes have been completed, and students have responded well to the introduction of the RADEC learning model.
{"title":"PENERAPAN MODEL PEMBELAJARAN READ-ANSWER-DISCUSS-EXPLAIN-CREATE (RADEC) PADA MATERI LARUTAN PENYANGGA DI SMAS INSHAFUDDIN BANDA ACEH","authors":"Latifah Hanum, Zulfadli Zulfadli, Chairun Nisa","doi":"10.22373/lj.v11i2.20360","DOIUrl":"https://doi.org/10.22373/lj.v11i2.20360","url":null,"abstract":"This study titled \"Application of Read-Answer-Discuss-Explain-Create (RADEC) Model on Buffer Solution Material at SMAS Inshafuddin Banda Aceh \" aims to explain activities, analyze learning results, and describe student responses. This qualitative descriptive study was carried out at SMAS Inshafuddin, with 20 participants chosen through purposive sampling from class XI IPA 1. Observing activities, learning outcome exams, and student response questionnaires on the RADEC learning model were used to collect data. The data analysis technique for student activities was collected by giving observers observation sheets, learning outcomes were obtained by giving them multiple-choice questions, and student responses were obtained by giving them a questionnaire. Data analysis revealed that student actions in the first meeting were 78.8% in the good category, 85.98% in the good category in the second meeting, and 92.86% in the very good category in the third meeting. In the good group, the completeness of student learning outcomes was 77.8%. The very good category received 92.25% of the student responses. Based on the study's findings, it is possible to infer that student activities have improved, student learning outcomes have been completed, and students have responded well to the introduction of the RADEC learning model.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":" 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139143071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PENGUKURAN KADAR LOGAM Hg, KADMIUM, ARSEN, DAN KROMIUM (VALENSI 6) DALAM AIR SUMUR","authors":"Khoirul Ngibad","doi":"10.22373/lj.v11i2.18358","DOIUrl":"https://doi.org/10.22373/lj.v11i2.18358","url":null,"abstract":"","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"77 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Mellyzar, Nanda Novita, Muliani Muliani, M. Marhami, Sri Rahayu Retnowulan
Literacy and numeracy skills are cognitive learning outcomes measured in the Minimum Competency Assessment (AKM) and are part of the National Assessment (AN). This study aims to describe the literacy and numeracy achievement profile of junior high school students in terms of three aspects, namely content, cognitive processes, and context The descriptive quantitative approach method used in this research involved 141 class VIII junior high school students in North Aceh Regency and Lhokseumawe City through random sampling. Respondents are participants who took part in the 2021 National Assessment. The research instrument used was a question on literacy with 26 questions and numeracy with as many as 30 questions according to the grid and aspects of the AN that had been validated. The context of the questions is arranged in the form of personal, socio-cultural, and scientific. The distribution of the questions is in the form of 20% multiple-choice, 60% complex multiple-choice, 10% matching, 5% short answer or short answer, and 5% description. The results showedthe average percentage score of literacy ability was 43.87% with low criteria, meanwhile for numeracy skills, the average percentage score was 33.91% with very low criteria. These results indicate that students' literacy and numeracy skills in terms of each content need to be improved through the implementation of learning programs and the use of textbooks that lead to the improvement and development of literacy and numeracy skills.
{"title":"THE LITERACY AND NUMERACY ABILITY PROFILE WHICH ARE VIEWED FROM MINIMUM ASSESSMENT COMPONENTS (AKM)","authors":"M. Mellyzar, Nanda Novita, Muliani Muliani, M. Marhami, Sri Rahayu Retnowulan","doi":"10.22373/lj.v11i2.19866","DOIUrl":"https://doi.org/10.22373/lj.v11i2.19866","url":null,"abstract":"Literacy and numeracy skills are cognitive learning outcomes measured in the Minimum Competency Assessment (AKM) and are part of the National Assessment (AN). This study aims to describe the literacy and numeracy achievement profile of junior high school students in terms of three aspects, namely content, cognitive processes, and context The descriptive quantitative approach method used in this research involved 141 class VIII junior high school students in North Aceh Regency and Lhokseumawe City through random sampling. Respondents are participants who took part in the 2021 National Assessment. The research instrument used was a question on literacy with 26 questions and numeracy with as many as 30 questions according to the grid and aspects of the AN that had been validated. The context of the questions is arranged in the form of personal, socio-cultural, and scientific. The distribution of the questions is in the form of 20% multiple-choice, 60% complex multiple-choice, 10% matching, 5% short answer or short answer, and 5% description. The results showedthe average percentage score of literacy ability was 43.87% with low criteria, meanwhile for numeracy skills, the average percentage score was 33.91% with very low criteria. These results indicate that students' literacy and numeracy skills in terms of each content need to be improved through the implementation of learning programs and the use of textbooks that lead to the improvement and development of literacy and numeracy skills.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"102 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139183096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lestari Lestari, P. Ata, Ayu Dwi Yulianti, Hafia Hasan, Risky Nor Cahyo, Zainur Arif Rahman, Agung Rahmadani, Farah Erika
The oil palm is a widely cultivated plant recognized by the public for its production of industrial raw materials for everyday use. Oil palm is rich in potential antioxidant activity, primarily due to its high content of phenolic and flavonoid compunds. This research aimed to assess the levels of total phenolic and flavonoid compunds in oil palm fruit. The extract sample was examined using the UV-Vis Spectrophotometry method, with the total phenolic measured at 744.8 nm, the total flavoinoid content at 440. The findigs indicated that the total phenolic content in the oil palm fruit extract was 1.46 mg/L while the total flavonoid content was 5.81 mg/L.
{"title":"PENENTUAN KADAR FENOLIK DAN FLAVONOID TOTAL PADA BUAH KELAPA SAWIT (Elais guineensis Jacq) DENGAN METODE SPEKTROFOTOMETRI UV-VIS","authors":"Lestari Lestari, P. Ata, Ayu Dwi Yulianti, Hafia Hasan, Risky Nor Cahyo, Zainur Arif Rahman, Agung Rahmadani, Farah Erika","doi":"10.22373/lj.v11i2.19676","DOIUrl":"https://doi.org/10.22373/lj.v11i2.19676","url":null,"abstract":"The oil palm is a widely cultivated plant recognized by the public for its production of industrial raw materials for everyday use. Oil palm is rich in potential antioxidant activity, primarily due to its high content of phenolic and flavonoid compunds. This research aimed to assess the levels of total phenolic and flavonoid compunds in oil palm fruit. The extract sample was examined using the UV-Vis Spectrophotometry method, with the total phenolic measured at 744.8 nm, the total flavoinoid content at 440. The findigs indicated that the total phenolic content in the oil palm fruit extract was 1.46 mg/L while the total flavonoid content was 5.81 mg/L.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinacanthus nutans Lindau is known as the elephant trunk leaf which belongs to the Acanthaceae family. C. nutans can act as an antioxidant by reducing free radicals from the mitochondrial electron transport chain in the cell membrane. In this study, elephant trunk leaves will be studied regarding their content and antioxidant activity and their association with free radicals/Reactive Oxygen Species (ROS), which are compounds that are highly reactive. ROS can cause damage to cell integrity and functional cell disruption. Free radical reduction prevents lipid oxidation, which then reduces malondialdehyde (MDA) levels. By potentiating the antioxidant properties of Superoxide Dismutase (SOD) and reducing lipid peroxidation, C. nutans can reduce oxidative stress. The purpose of this study was to evaluate the effect of elephant trunk leaf extract on malondialdehyde and superoxide dismutase levels in rats with high activity. The research method used was laboratory experimental research with a Randomized Posttest Only with Control Group Design. In this study, 25 male white rats of the Wistar strain were divided into 5 groups: normal, negative control, and treatment I, II, III which were given elephant trunk leaf extract at successive doses of 50, 300, and 2000 mg/kg BW ( Weight). and high activity for 14 days. MDA measurements using a spectrophotometer and SOD using calorimetry were carried out after 14 days. The results showed that elephant trunk leaf extract reduced MDA levels and increased SOD activity in the blood plasma of rats induced by high activity (P value <0.05).
{"title":"PENGARUH PEMBERIAN EKSTRAK DAUN BELALAI GAJAH TERHADAP KADAR MALONDIALDEHID DAN SUPEROKSIDA DISMUTASE PADA TIKUS DENGAN AKTIVITAS TINGGI","authors":"Jesslyn Felix, Tan Suyono, Linda Chiuman","doi":"10.22373/lj.v11i2.19116","DOIUrl":"https://doi.org/10.22373/lj.v11i2.19116","url":null,"abstract":"Clinacanthus nutans Lindau is known as the elephant trunk leaf which belongs to the Acanthaceae family. C. nutans can act as an antioxidant by reducing free radicals from the mitochondrial electron transport chain in the cell membrane. In this study, elephant trunk leaves will be studied regarding their content and antioxidant activity and their association with free radicals/Reactive Oxygen Species (ROS), which are compounds that are highly reactive. ROS can cause damage to cell integrity and functional cell disruption. Free radical reduction prevents lipid oxidation, which then reduces malondialdehyde (MDA) levels. By potentiating the antioxidant properties of Superoxide Dismutase (SOD) and reducing lipid peroxidation, C. nutans can reduce oxidative stress. The purpose of this study was to evaluate the effect of elephant trunk leaf extract on malondialdehyde and superoxide dismutase levels in rats with high activity. The research method used was laboratory experimental research with a Randomized Posttest Only with Control Group Design. In this study, 25 male white rats of the Wistar strain were divided into 5 groups: normal, negative control, and treatment I, II, III which were given elephant trunk leaf extract at successive doses of 50, 300, and 2000 mg/kg BW ( Weight). and high activity for 14 days. MDA measurements using a spectrophotometer and SOD using calorimetry were carried out after 14 days. The results showed that elephant trunk leaf extract reduced MDA levels and increased SOD activity in the blood plasma of rats induced by high activity (P value <0.05).","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"50 9-10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The matoa plant (Pometia pinnata) is known as a medicinal plant that has high antioxidant activity. Cigarette smoke produces free radicals and causes oxidative stress, a condition where the number of free radicals in the body exceeds the capacity to neutralize them. The aim of this study was to evaluate the levels of malondialdehyde (MDA), superoxide dismutase (SOD) and histopathological features of rat’s lung exposed to cigarette smoke and matoa peels extract. The research method uses laboratory experimental studies using rats as research subjects. The design used was Randomized Posttest Only with Control Group Design. 24 male white rats of the wistar strain were divided into 6 groups: normal, negative control, positive control, and group I, II, III were given matoa peels extract 3, 6, and 12 mg/kgBW respectively and exposure to cigarette smoke for 14 days. After 14 days, MDA, SOD and histopathological picture of the rats' lungs will be compared based on the group. Data analysis was carried out using a one-way ANOVA test. The results showed that matoa peels extract could reduce MDA levels and increase SOD activity in rats exposed to cigarette smoke (p value <0.05). Group that is given matoa peels extract 12 mg/kgBW can reduce lung tissue damage.
{"title":"EFFECT OF GIVING MATOA FRUIT PEEL EXTRACT ON LEVELS OF SUPEROXIDE DISMUTASE (SOD), MALONDIALDEHYDE (MDA) AND HISTOLOGICAL FEATURES OF THE LUNGS OF RATS GIVEN CIGARETTE SMOKE EXPOSURE","authors":"Levinna Levinna, Tan Suyono, L. Chiuman","doi":"10.22373/lj.v11i2.19113","DOIUrl":"https://doi.org/10.22373/lj.v11i2.19113","url":null,"abstract":"The matoa plant (Pometia pinnata) is known as a medicinal plant that has high antioxidant activity. Cigarette smoke produces free radicals and causes oxidative stress, a condition where the number of free radicals in the body exceeds the capacity to neutralize them. The aim of this study was to evaluate the levels of malondialdehyde (MDA), superoxide dismutase (SOD) and histopathological features of rat’s lung exposed to cigarette smoke and matoa peels extract. The research method uses laboratory experimental studies using rats as research subjects. The design used was Randomized Posttest Only with Control Group Design. 24 male white rats of the wistar strain were divided into 6 groups: normal, negative control, positive control, and group I, II, III were given matoa peels extract 3, 6, and 12 mg/kgBW respectively and exposure to cigarette smoke for 14 days. After 14 days, MDA, SOD and histopathological picture of the rats' lungs will be compared based on the group. Data analysis was carried out using a one-way ANOVA test. The results showed that matoa peels extract could reduce MDA levels and increase SOD activity in rats exposed to cigarette smoke (p value <0.05). Group that is given matoa peels extract 12 mg/kgBW can reduce lung tissue damage.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"31 7-8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, FTIR spectroscopy paired with PCA was utilized to differentiate biduri plants from different places. All biduri leaf samples from each location were then obtained for their FTIR spectrum in the wave number range of 4000-400 cm-1 and pretreated with the 1st derivative. The preprocessed spectrum was then examined using HCA and PCA chemometric methods; based on the HCA classification results, the biduri samples were divided into three groups, but the selected groups were unable to identify the biduri samples from the geothermal manifestation area. The PCA findings displayed in the plot scores then successfully classified the biduri leaf samples into four groups, with a total variance explained by 63% (PC1 44% and PC2 19%). This developed method can be used to correctly identify biduri plants originating from the geothermal manifestation area of Mount Seulawah Agam, allowing it to be concluded that environmental conditions in the geothermal manifestation area of Mount Seulawah Agam affect the content of secondary metabolites present in biduri plants, as evidenced by the PCA plot, which shows samples from geothermal and non-geothermal locations forming their respective groups.
{"title":"KLASIFIKASI DAUN BIDURI (Calotropis gigantea L.) DARI LOKASI BERBEDA MENGGUNAKAN SPEKTROSKOPI INFRAMERAH DAN KEMOMETRIK","authors":"Hafni Zahara, Taufiq Karma, Muhammad Yusuf","doi":"10.22373/lj.v11i2.15096","DOIUrl":"https://doi.org/10.22373/lj.v11i2.15096","url":null,"abstract":"In this study, FTIR spectroscopy paired with PCA was utilized to differentiate biduri plants from different places. All biduri leaf samples from each location were then obtained for their FTIR spectrum in the wave number range of 4000-400 cm-1 and pretreated with the 1st derivative. The preprocessed spectrum was then examined using HCA and PCA chemometric methods; based on the HCA classification results, the biduri samples were divided into three groups, but the selected groups were unable to identify the biduri samples from the geothermal manifestation area. The PCA findings displayed in the plot scores then successfully classified the biduri leaf samples into four groups, with a total variance explained by 63% (PC1 44% and PC2 19%). This developed method can be used to correctly identify biduri plants originating from the geothermal manifestation area of Mount Seulawah Agam, allowing it to be concluded that environmental conditions in the geothermal manifestation area of Mount Seulawah Agam affect the content of secondary metabolites present in biduri plants, as evidenced by the PCA plot, which shows samples from geothermal and non-geothermal locations forming their respective groups.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"264 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139183050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Molasses fermentation from molasses has been studied as an alternative to renewable energy. The goal of this research was to determine molasses fermentation as an alternative to renewable energy. The goal of this research was to monitor the alcohol concentration and pH levels during the fermentation process. This study employed a completely randomized design (CRD) method with two components. Factor A is the amount of time required for aeration. Molasses dilution is factor B. Factor A was tested across four different time periods: 24, 48, 72, and 96 hours. Factor B was tested using three different ratios: 1: 1.5, 1: 2, and 1: 2.5. The calculations of alcohol content FcalcP = 74.35> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79 revealed that components A and B had a significant impact on the final alcohol content. The BNJ 1% was calculated to be 0.63. This demonstrates that A4B3 is the most effective treatment. FcalcP = 2.85> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79, indicating that factors A and B have a highly substantial effect on acidity (pH). The BNJ 5% was obtained at a value of 0.61. This also demonstrates the optimal acidity conditions in A4B3 therapy. Based on these findings, it is clear that aeration for 96 hours and dilution with a 1: 2.5 ratio produce the greatest outcomes and the maximum alcohol content. At a pH of 4.45, the average bioethanol content is 6.31%.
{"title":"FERMENTASI MOLASE DARI TETES TEBU SEBAGAI ALTERNATIF BAHAN BAKAR TERBARUKAN","authors":"Adean Mayasri","doi":"10.22373/lj.v11i1.15474","DOIUrl":"https://doi.org/10.22373/lj.v11i1.15474","url":null,"abstract":"Molasses fermentation from molasses has been studied as an alternative to renewable energy. The goal of this research was to determine molasses fermentation as an alternative to renewable energy. The goal of this research was to monitor the alcohol concentration and pH levels during the fermentation process. This study employed a completely randomized design (CRD) method with two components. Factor A is the amount of time required for aeration. Molasses dilution is factor B. Factor A was tested across four different time periods: 24, 48, 72, and 96 hours. Factor B was tested using three different ratios: 1: 1.5, 1: 2, and 1: 2.5. The calculations of alcohol content FcalcP = 74.35> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79 revealed that components A and B had a significant impact on the final alcohol content. The BNJ 1% was calculated to be 0.63. This demonstrates that A4B3 is the most effective treatment. FcalcP = 2.85> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79, indicating that factors A and B have a highly substantial effect on acidity (pH). The BNJ 5% was obtained at a value of 0.61. This also demonstrates the optimal acidity conditions in A4B3 therapy. Based on these findings, it is clear that aeration for 96 hours and dilution with a 1: 2.5 ratio produce the greatest outcomes and the maximum alcohol content. At a pH of 4.45, the average bioethanol content is 6.31%.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135187688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study is to define the characteristics of STEM-based LKPD, as well as to establish the practicality of STEM-based LKPD and the growth in students' creative thinking abilities. The literature study approach was employed in this study, which was gathered from various sources such as books, journals, and articles linked to the observed research. Determine the topic, obtain information, determine research, collect data sources, prepare data presentation, and compile are the steps in this research. The findings of this research analysis in the three journals studied are visible, specifically the comparison of the development of STEM-based worksheets in improving creative thinking skills to obtain results that are very feasible to develop when compared to the development of critical thinking and scientific literacy. This is demonstrated by the 85.21% improvement in creative thinking skills acquired from STEM-based LKPD development research. Furthermore, based on the analysis of literature studies on the growth of STEM-based LKPD in enhancing creative thinking skills, it has improved year after year, with the feasibility percentage reaching 96% in 2022.
{"title":"PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS STEM UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KREATIF","authors":"M. Mukhlis, Nava Hiqmatunnisaq, Barisah Barisah","doi":"10.22373/lj.v11i1.15679","DOIUrl":"https://doi.org/10.22373/lj.v11i1.15679","url":null,"abstract":"The purpose of this study is to define the characteristics of STEM-based LKPD, as well as to establish the practicality of STEM-based LKPD and the growth in students' creative thinking abilities. The literature study approach was employed in this study, which was gathered from various sources such as books, journals, and articles linked to the observed research. Determine the topic, obtain information, determine research, collect data sources, prepare data presentation, and compile are the steps in this research. The findings of this research analysis in the three journals studied are visible, specifically the comparison of the development of STEM-based worksheets in improving creative thinking skills to obtain results that are very feasible to develop when compared to the development of critical thinking and scientific literacy. This is demonstrated by the 85.21% improvement in creative thinking skills acquired from STEM-based LKPD development research. Furthermore, based on the analysis of literature studies on the growth of STEM-based LKPD in enhancing creative thinking skills, it has improved year after year, with the feasibility percentage reaching 96% in 2022.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44285052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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