Dalam Melaksanakan eksperimen atau percobaan hendaknya terlebih dahulu perlu dirancangan bagaimana percobaan tersebut itu dirancang. Untuk merancangnya silahkan pelajari beberapa rancangan/desain yang kami sajikan berikut (klik) RANCANGAN PERCOBAAN
Senin, 04 Mei 2026
Minggu, 14 September 2025
Implementing of Inquiry Model Based on Technology to Increase Scientific Literacy and Critical Thinking
Rendahnya kemampuan literasi sains dan berpikir kritis siswa Indonesia yang ditunjukkan oleh hasil Programme for International Student Assessment (PISA) menjadi latar belakang penting dilakukannya penelitian ini. Penelitian ini bertujuan untuk menganalisis efektivitas model pembelajaran inkuiri berbasis teknologi dalam meningkatkan keterampilan berpikir kritis dan literasi sains siswa. Penelitian dilakukan pada tiga madrasah dengan menggunakan desain eksperimen semu yang melibatkan tiga kelompok perlakuan, yaitu inkuiri terbimbing, inkuiri bebas, dan inkuiri yang dimodifikasi. Subjek penelitian adalah siswa madrasah yang dipilih secara purposif. Instrumen yang digunakan meliputi tes literasi sains, tes berpikir kritis, lembar kerja siswa, dan kuesioner. Data dianalisis menggunakan uji t-test dan ANOVA untuk menguji efektivitas antar kelompok perlakuan. Hasil penelitian menunjukkan bahwa model pembelajaran inkuiri berbasis teknologi secara signifikan meningkatkan kemampuan berpikir kritis dan literasi sains siswa. Kelompok dengan model inkuiri yang dimodifikasi menunjukkan hasil paling optimal dibandingkan kelompok lainnya. Temuan ini menunjukkan bahwa integrasi teknologi dalam pembelajaran inkuiri berpotensi meningkatkan keterampilan berpikir tingkat tinggi dan literasi sains siswa. Penelitian ini menyimpulkan bahwa penerapan model inkuiri berbasis teknologi sangat efektif, khususnya dalam pembelajaran biologi pada materi kompleks seperti Archaebacteria. Implikasi dari penelitian ini adalah pentingnya pengembangan kurikulum berbasis inkuiri yang didukung teknologi untuk menunjang keterampilan abad ke-21 dan https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EQQWPVEf5IZMogHuKUQiKYcBQBSXWnsG9xoEZyV0A-w0RQ?e=kLuHTdmeningkatkan kualitas pendidikan di Indonesia.
The Impact of RADEC Learning Model on Mathematical Communication Ability: An Experimental Study on High School Students in Palu City
The low mathematics learning outcomes of high school students in Palu City are caused by the weak mathematical communication skills of high school students. Therefore, a learning model is needed that can improve students' mathematical communication skills. The RADEC learning model was chosen to be implemented in mathematics learning in the classroom. This research method is a quasi-experimental method with an intact group comparison design. The population of the study was all grade X high school students in Palu City, totaling 3656 students, while the sample was 186 students in theexperimental class and 186 students in the control class. Sampling used a purposive random sampling technique. The instruments used were initial ability tests and mathematical communication ability tests. Data were analyzed using t-test statistics and two-way ANOVA test statistics. The results showed that the RADEC learning model had a higher impact on the mathematical communication skills of high school students in Palu City, with a significance level of p = 0.000. The average score of mathematical communication skills of students who follow the RADEC learning model is 76.70 on a scale of 0-100, while participants who follow Direct Instruction are 62.35. The RADEC learning model does not provide different impacts based on students' initial abilities, so this model can be implemented in classes with heterogeneity in students' initial abilities. Please find it detailly the link https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EUwpV9LdyPBKuPsIXapygf4BsOp4mziNBTPg_pAb06qNhw?e=pMtJlm
Jenis-Jenis Jamur Makroskopis di Kawasan Hutan Desa Namo Kecamatan Kulawi Kabupaten Sigi
Penelitian ini bertujuan untuk mengidentifikasi jenis jamur makroskopis yang ditemukan di kawasan hutan Desa Namo, Kecamatan Kulawi, Kabupaten Sigi. Metode yang digunakan dalam penelitian ini adalah metode jelajah, dengan teknik pengambilan sampel secara koleksi bebas. Pengambilan sampel dilakukan pada 3 stasiun berbeda, yaitu kawasan hutan, perkebunan dan permukiman warga. Data hasil pengamatan dianalisis secara deskriptif dan diidentifikasi menggunakan buku, publikasi ilmiah, serta aplikasi Google Lens. Hasil penelitian menunjukkan bahwa terdapat 30 spesies jamur makroskopis yang terbagi dalam 2 filum, yaitu Basidiomycota dan Ascomycota yang terdiri dari 4 Class, 7 Ordo, dan 16 Family. Filum Basidiomycota memiliki jumlah spesies terbanyak yang terdiri dari 21 Genus, 14 family dan 5 ordo. Sedangkan dari filum Ascomycota hanya terdapat 2 genus, 2 family dan 2 ordo. Dengan demikian, keanekaragaman jamur ini menunjukkan potensi sumber daya hayati yang dapat dimanfaatkan sebagai bahan edukatif maupun penelitian lanjutan. Lengkapnya lihat link ini https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/ETrO4ns6T_JEv-c7w8Dd7DkB-Qi5wD_xQJm76qeoj30ppA?e=nse8wE
Pengaruh Model Problem Based Learning (PBL) Terhadap Kemampuan Pemecahan Masalah Biologi Siswa Kelas VIII SMP Negeri 19 Palu
Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) terhadap kemampuan pemecahan masalah biologi siswa di kelas VIII SMP Negeri 19 Palu. Metode yang digunakan adalah eksperimen semu (Quasi Eksperimen) dengan desain Non equivalent (Pretest and Posttest) Control Group Design. Sampel penelitian berjumlah 46 siswa, terdiri dari 23 siswa kelas eksperimen yang menggunakan model PBL dan 23 siswa kelas kontrol yang menggunakan model pembelajaran konvensional. Data dikumpulkan melalui observasi, lembar penilaian aktivitas guru dan siswa, serta tes berbentuk soal uraian yang valid dan reliabel. Analisis data dilakukan dengan uji prasyarat, yaitu uji normalitas dan uji homogenitas, serta pengujian hipotesis menggunakan uji Independent Sample t-test. Hasil penelitian menunjukkan bahwa terdapat pengaruh signifikan dari model PBL terhadap kemampuan pemecahan masalah biologi siswa. Rata-rata nilai posttest kelas eksperimen mencapai 91,73, sedangkan kelas kontrol hanya 75,21. Uji t menunjukkan nilai p < 0,05, yang berarti hipotesis alternatif diterima, menandakan bahwa penerapan model PBL berpengaruh positif. Dengan demikian, dapat disimpulkan bahwa model PBL efektif dan berpengaruh terhadap kemampuan pemecahan masalah biologi siswa pada mata pelajaran IPA kelas VIII-D SMP Negeri 19 Palu. Lengkapnya dapat dilihat pada link ini https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EcVfCk7TnVVCgJz6weIdt28BDuYUKIoqNfKF8GqmfEj6Aw?e=IkUHKw
Identifikasi Jenis Tumbuhan Paku (Pteridophyta) di Jalur Pendakian Gunung Nokilalaki Desa Tongoa Kecamatan Palolo Kabupaten Sigi
Tujuan penelitian ini mengidentifikasi jenis tumbuhan paku (Pteriodophyta) yang ada di Jalur Pendakian Gunung Nokilalaki Desa Tongoa Kecamatan Palolo Kabupaten Sigi. Jenis penelitian ini adalah jenis penelitian deskriptif kualitatif dengan menggunakan metode jelajah dan teknik pengambilan sampel secara koleksi bebas. Penelitian ini ditujukan untuk mendeskripsikan fenomena-fenomena yang ada. Di dalamnya terdapat upaya mendeskripsikan, mencatat, dan menganalisis kondisi-kondisi yang sedang terjadi secara faktual. Hasil penelitian yang dilakukan di Jalur Pendakian Gunung Nokilalaki Desa Tongoa Kecamatan Palolo Kabupaten Sigi diperoleh 26 jenis tumbuhan paku yang terdiri dari 4 kelas, 6, ordo, 14 famili. Dari ke-26 jenis tumbuhan paku (Pteridophyta) yang ditemukan yaitu Dryopteris filix-mas,, Dryopteris marginalis, Rumohra adiantiformis, Neprolepis cordifolia, Athyrium macrocarpum, Asplenium nidus, Asplenium polyodon, Davallia trichomanoides, Microsorum fortune, Pteris biaurita, Nephrolepis biserrata, Nephrolepis sp, Microlepia speluncea, Microsorum pustulatum, Pyrrosia lanceolata, Pyrrosia philoselloides, Microsorum punctatum, Vittaria elongate, Angiopteris evecta, Cristella dentate, Selaginela wildewoii, Selaginela involvens, Selaginela sp, Selaginella apoda, Huperzia lucidula. Hymenophyllum
sp. Selengkapnya lihat link ini https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EU_aV0WNc-lJv2wGnT3KL4kBiSNYXpsnDZLShvrROv3ftA?e=KAcIqm
Penerapan Model Pembelajaran Project Based Learning (PjBL) dalam Meningktkan Keterampilan Berpikir Kritis Siswa Kelas X MIA 1 SMA Negeri 2 Sirenja Pada Pelajaran Biologi
P enelitian ini bertujuan untuk meningkatkan keterampilan berpikir kritis siswa kelas X MIA 1 SMAN 2 Sirenja melalui penerapan model pembelajaran Project Based Learning (PjBL) pada mata pelajaran Biologi. Penelitian ini menggunakan pendekatan Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam dua siklus, masing-masing terdiri dari tahap perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Data dikumpulkan melalui observasi aktivitas guru dan siswa, serta tes berpikir kritis. Data penelitian dianalisis menggunakan statistik deskriptif. Hasil penelitian menunjukkan peningkatan yang signifikan dari siklus I ke siklus II. Ketuntasan klasikal meningkat dari 41,17% menjadi 88,2%, sedangkan daya serap klasikal meningkat dari 64,26% menjadi 80,8%. Aktivitas guru dan siswa juga menunjukkan peningkatan, yang mencerminkan keterlibatan aktif dalam pembelajaran. Selain itu, indikator berpikir kritis seperti kemampuan analisis, evaluasi, dan pemecahan masalah mengalami perkembangan yang positif. Dengan demikian, penerapan model Project Based Learning terbukti efektif dalam meningkatkan keterampilan berpikir kritis siswa, serta mampu menciptakan suasana pembelajaran yang lebih aktif, kolaboratif, dan kontekstual. Selengkapnya lihat pada link ini https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EbLgM-Rfhw1Nn08ZZsZWzksB0-SbmdvlYtiyszXoSKzfUg?e=5dC9hd
Identification of plant species around the environment of senior high school 1 Palu and their utilization as learning resource
determine the feasibility of flipbook regarding the identification of plant species around the environment of SMA Negeri 1 Palu as a learning resource. This research is a study that uses a qualitative descriptive research approach with survey methods and exploration techniques. This research was conducted around the environment of SMA Negeri 1 Palu in May 2024. The results showed that the types of plants found were 50 species, including Maranta arundinaceous, Alocasia macrorrhizos, Euphorbia tithymaloides, Alocasia cucullata, Pilea microphylla, Oxalis corniculata, Peperomia pellucida, Graptophyllum pictum, Tabernaemontana divaricata, Syzygium polyanthum, Aglaonema rotundum, Drimiopsis maculata, Ledebouria socialis, Chlorophytum comosum, Homalomena rubescens, Zamioculcas zamiifolia, Chlorophytum orchidastrum, Heliconia rostrata, Clitoria ternatea, Syzygium oleana, Macaranga tanarius, Euphorbia umbellata, Tradescantia pallida, Pseuderanthemum maculatum, Acalypha indica, Dypsis lutescens, Cycas revoluta, Asplenium nidus, Ixora coccinea, Codiaeum variegatum, Catharanthus roseus, Bougainvillea glabra, Bougainvillea buttiana, Adenium obesum, Excoecaria cochinchinensis, Polyscias scutellaria, Duranta erecta, Pterocarpus indicus, Asystasia gangetica, Mangifera indica, Monoon longifolium, Ehretia microphylla, Musa acuminata, Dracaena trifasciata, Dracaena angolensis, Aglaonema commutatum, Cordyline fruticosa, Agave demeesteriana, Alocasia micholitziana, and Dracaena hyacinthoides. The plants were divided into 24 families and 5 habitus, both wild and cultivated plants. The results showed that wild plants found consisted of 5 families, namely as many as 5 species and cultivated plants found consisted of 21 families, namely as many as 45 species. The results of this study can be used as a learning resource in the form of a flipbook. Based on the percentage of feasibility assessments conducted by 3 expert validator lecturers (content, design, and media) and trials to students, it shows that the results of the feasibility validation of learning resource in the form of flipbook are very feasible to use as learning resource in learning with a percentage of 89%.https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EQNUBUeKXmhBjwChfDHv4ZIBc9dvvFvsw7PMfo8nbtqmvA?e=daE9Qf
Development of Household Waste Diversification in Making Liquid Organic Fertilizer (LOF) for the Community of Tinggede Village, Sigi Regency
Tinggede village is known as an area that has a high demand for fruit and vegetable production, where most of the people are farmers. The goal is to provide knowledge and capability in diversifying domestic waste in making liquid organic fertilizer (LOF) to the community of Tinggede village, Sigi regency. The activity will be held in July 2024, for 3 days. There were 25 participants who attended, all of whom were members of the Ibu PKK. The results obtained, firstly, they understood about the importance of utilizing waste into use value, and the process of making LOF. During this session, they were listening focusly, some of the participants actively asked questions to the service team, and gave positive responses regarding the importance of this education. The second result was that the participants succeeded in making two types of LOF, namely one made from a combination of vegetables and rice washing water, and one made only from rice water. From interviews with participants, telling about the participants’ experiences during routine checks for 2 weeks for this activity was very useful for them, because the LOF that had been made was successful, and could be used directly on plants. Based in there results, this service activity is considered to have achieved the expected target. Please find it completely the link https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EcsRXSY9W3FGgSq4tUlhzT4B-VCg5GY4DNry21_PLVrYjA?e=mNndEg
Sabtu, 13 September 2025
Application of Team Games Tournament (TGT) Type Cooperative Learning Model to Improve Learning Outcomes of Class VIII B at SMPN 2 Sirenja
This study aims to improve the learning outcomes of students in class VIII B at SMP Negeri 2 Sirenja. This research is a type of classroom action research (PTK) by applying the Team Games Tournament (TGT) cooperative model, which is carried out with 2 cycles consisting of planning, implementation, observation and reflection. The data taken is quantitative data, namely data on learning outcomes obtained from tests. The results showed that the students' learning outcomes in the form of classical absorption obtained an increase from cycle I to II by 14.3%, and classical learning completeness obtained an increase of 19.1%. Thus it can be concluded that the use of team game tournament (TGT) learning model can improve the learning outcomes of students of class VIII C at SMP Negeri 2 Sirenja. Please find completely the link. https://univtadulako-my.sharepoint.com/:b:/g/personal/astija_untad_ac_id/EY17RKjDNt5NrgKX9u514qABvRSRTdg5rWvJkUAtbryH7A?e=WCaRNS
Invertase of the cell wall controls the growth of both the apical and vegetative organs of the tomato
Researchers have intensively studied how external factors like temperature, humidity, soil structure, and fertilizer affect tomato plant growth. However, little is known about how internal factors, particularly cell wall invertase, affect plant growth. This study aims to determine how the activity of the cell wall invertase enzyme regulates the apical and vegetative growth of plants. The study utilized four tomato plants, consisting of two transgenic and two wild-type plants. The transgenic plants in one set exhibit lower levels of the cell wall invertase, known as TLINA. Another set of transgenic plants, known as TINHI, exhibited higher levels of the cell wall invertase. We named both wild types of plants, WLINA and WINHI, respectively, and used them as the control plant. The study's results revealed that the transgenic plants (TLINA) ceased their apical shoot growth, leading to the growth of an axial shoot to take the place of the apical shoot. t. Also, the TLINA plants grew lower than wild-type plants. Interestingly, the vegetative organs of TINHI plants grew higher than both wild types and TLINA plants. This evidence suggested that cell wall invertase regulates the apical and vegetative organs of plants. Please detailly find the link
Minggu, 10 November 2024
PBLRQA Strategy on Metacognitive Skills and Higher-order Thinking of Students in the Genetics Course
Rendahnya kemampuan metakognitif dan berpikir tingkat tinggi menyebabkan mahasiswa kesulitan dalam memahami materi mata kuliah genetika. Penelitian ini bertujuan untuk menganalisis efektivitas strategi PBLRQA, PBL, dan RQA terhadap keterampilan metakognitif dan berpikir tingkat tinggi siswa. Penelitian ini menggunakan desain non-equivalent control group pretest-posttest design. Pengambilan sampel dilakukan terhadap 118 mahasiswa yang terdiri dari empat kelas dengan menggunakan teknik sampling jenuh. Instrumen penelitian yang digunakan berupa lembar observasi aktivitas dosen dan mahasiswa, tes keterampilan metakognitif berbasis essay, dan tes pilihan ganda keterampilan berpikir tingkat tinggi. Data aktivitas dosen dan mahasiswa dianalisis berdasarkan persentase indikator yang berkategori tinggi dan sangat tinggi secara sintaksis. Data keterampilan metakognitif dan berpikir tingkat tinggi dianalisis menggunakan tes Normalized Gain dan Independent Kruskal Wallis. Temuan penelitian menunjukkan bahwa penerapan strategi PBLRQA, PBL, dan RQA tidak efektif dalam meningkatkan keterampilan metakognitif dan keterampilan berpikir tingkat tinggi siswa. Untuk menindaklanjuti temuan tersebut, diperlukan penelitian lebih lanjut untuk mengeksplorasi keterlibatan gaya belajar dan dukungan sosial terhadap keterampilan metakognitif dan keterampilan berpikir tingkat tinggi siswa, dengan fokus pada penerapan strategi PBLRQA dan RQA
Effect of applying POC of Musa paradisiaca peel on the growth and production of tomato plants (Solanum lycopersicum)
The peel of the kepok banana (Musa paradisiaca) is frequently perceived as pointless garbage by individuals after they have consumed the fruit. Nevertheless, the conversion of kepok banana husks into liquid organic fertilizer (POC) provides a number of benefits. The objective of this investigation is to determine the optimal concentration of POC for tomato cultivation as well as the impact of POC from kepok banana peels on the growth and yield of tomato plants Tomato Plants . The study implements a complete random design (RAL) with four interventions and five replicates: P0 = 0% (no fertilizer), P1 = 15%, P2 = 30%, and P3 = 45%. Using the ANOVA test, SPSS-25 software facilitated the analysis of the collected data. The results suggested that the growth of tomato plants at 12, 18, and 24 days after sowing (HST) was substantially influenced by the use of POC derived from kepok bananas, particularly in terms of plant height and leaf area. However, the quantity, weight, and size of the produce did not significantly change at 42, 46, and 50 HST. The recommended dosage for tomato plants is 15%.
Terrestrial Ferns (Pteridophyta) in the Bancea nature tourism park area
Bancea Nature Tourism Park (NTP) is a protected area with an abundance of various types of plants. Endemic plants, primarily terrestrial ferns, have not been identified in this area. Therefore, qualitative descriptive research was conducted using exploratory and free-collection sampling techniques. The study was conducted in the NTP Bancea area in October-December 2023. There were 40 types of terrestrial ferns found, which were divided into three classes and 18 tribes consisting of 1 type of Gleicheniaceae, two types of Aspleniaceae, two types of Blechnaceae, three types of Nephrolepidaceae, six types of Pteridaceae. two types of Cyatheaceae, 1 type of Hymenophyllaceae, 1 type of Thelypteridaceae, five types of Dryopteridaceae, 1 type of Davaliacea, eight types of Polypodiaceae, two types of Schizaeaceae, 1 type of Equisetaceae, 1 type of Dipteridaceae, 1 type of Lygodiaceae, 1 type of Selaginellaceae, 1 type of Athyriaceae and Lycopodiaceae 1 type.
The Effect of the PJBL Model in Biology Learning on the Learning Outcomes of UPTD SMAN 1 Sarudu Students
The research seeks to elucidate the impact of the PJBL (project based learning) learning paradigm on student
academic performance at UPTD SMA Negeri 1 Sarudu. This research utilizes a quantitative approach, specifically the quasiexperimental method. The population in this study comprises class X pupils, whereas the sample consists of students from classes Xa and Xb, utilizing a saturation sampling strategy. Data gathering methodologies include pretest and posttest inquiries throughout the first and final sessions. The research shows that the PJBL learning model has a big effect on how well students learn at UPTD SMA Negeri 1 Sarudu. There is a big difference between the experimental class that gets PJBL and the control class that doesn't. The Mann-Whitney test revealed a score of 1,174 for the experimental class and 779 for the control class, with a significant value of 0.005, indicating acceptance of the hypothesis. Therefore, we concluded that the PJBL learning model had an influence on the biology learning outcomes of students at UPTD SMA Negeri 1 Sarudu
Development of a questionnaire on high school teachers' perceptions of differentiated learning in schools
Differentiated learning is an approach that adapts to each student's learning needs. Teachers provide facilities that suit students' individual needs, bearing in mind that each student has unique characteristics and cannot be treated uniformly. This article aims to provide a deeper understanding of learning differentiation and explore teachers' perceptions regarding its implementation in the classroom. The results of interview research show that the purpose of differentiated learning is to coordinate learning by paying attention to students' interests, readiness and learning preferences. This aims to help all students achieve learning goals, increase motivation and learning outcomes, and establish a harmonious relationship between teachers and students, so that students are more enthusiastic about learning
Problem Based Learning Assisted by the Padlet Application on Critical Thinking Abilities and Collaboration Skills
Kemampuan berpikir kritis dan keterampilan kolaborasi penting dimiliki peserta didik untuk menghadapi tantangan di abad 21. Namun saat ini masih banyak siswa yang kurang memiliki Kemampuan berpikir kritis dan keterampilan kolaborasi sehingga berdampak pada tujuan pembelajaran yang tidak tercapai secara maksimal. Berdasarkan hal tersebut, penelitian ini bertujuan untuk menganalisis pembelajaran berbasis masalah berbantuan aplikasi Padlet terhadap Kemampuan Berpikir Kritis dan Keterampilan Kolaborasi. Penelitian ini yaitu adalah kuantitatif dengan jenis penelitian quasi eksperimen. Desain penelitian ini menggunakan non-equivalent control grup yang terdiri dari kelompok eksperimen dan kelompok kontrol. Sampel penelitian ini yaitu Kelas eksperimen terdiri dari 35 siswa dan kelas kontrol terdiri dari 35 siswa.
Development of Uno Stacko Biology (Usb) Learning Media on Reproductive System Material Class Xi Sma Negeri 1 Palu
We can now address the issue of students not actively learning about the reproductive system in the classroom. We can attribute this phenomenon to the belief that the reproductive system's material is excessively complex and primarily relies on rote memorization. The current issue is receiving significant attention and requires a thorough investigation from multiple stakeholders. The objective of this project is to create instructional media named Uno Stacko Biology (USB) that combines educational games to facilitate students' understanding of the reproductive system. The study utilized a 4D development paradigm, which encompasses the phases of defining, designing, developing, and disseminating, to conduct research and achieve progress.
Development of an integrated test instrument for Islamic value to measure mathematical reasoning of students in the Islamic mathematics study courses
Mathematics is a science of great relevance as it influences human mind about concepts, processes, and reasoning. Through the process of logical thinking, individuals are able to differentiate between concepts that are considered positive or negative, advantageous or disadvantageous. Undoubtedly, it is possible to effectively tackle current issues by employing logical thinking. Reasoning plays a significant role in the formation of one's character within the realm of schooling. Reasoning encompasses the capacity to engage in logical reasoning, evaluate circumstances, and reach conclusions using reasonable thought processes.
Effect of chitosan of milkfish scale waste (Chanos chanos) on the preservation of tomato fruit (Lycopersium esculentum)
Tomatoes (Lycopersium esculentum) provide excellent nutritional value for human health. However, their high water
content and classification as climacteric fruits, which undergo quick ripening through respiration, make them
vulnerable to harm during the post-harvest period. One method employed to prolong the longevity of tomatoes involves the application of a coating made from chitosan derived from milkfish scales. The objective of this study is to assess the impact of chitosan derived from milkfish scales (Chanos chanos) on the longevity of tomatoes by examining alterations in color, weight loss, pH level (acidity), and vitamin C content. This study employs a complete random design (CRD) experiment consisting of five treatments: P0 = 0%, P1 = 1%, P2 = 1.5%, P3 = 2%, and P4 = 2.5%. Each treatment is replicated three times. The metrics recorded encompassed the tomato's color, weight loss measured by comparing the initial weight with subsequent weights, pH value (indicating acidity), and monitoring of vitamin C levels.
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