11 research outputs found
Extraction Cellulose From Rice Husk
Get PDFAbstract. Cellulose from rice husk has been successfully synthesized. Rice husk is an abundant agricultural waste and has a high cellulose content. Bioconversion of rice husk into cellulose begins with the stages of delignification and bleaching. The resulting cellulose was characterized using FTIR and XRD. The IR spectra show a strong absorption peak at 3444.87 cm− 1 which is associated with stretching vibrations O − H (hydrogen bonds between molecules), absorption peaks at 1033.85 cm− 1 are identified as stretching C − O − C which is β bond −1,4 glycosidic from cellulose. XRD shows the particle size of cellulose which is 3.44 nm and has crystallinity of 58.73%. These results indicate that cellulose from rice husk has good characteristics. Keywords: Rice Husk, Cellulose, FTIR, XR
Apologizing in the Makassar Language: A Cross-Cultural Comparison Study on Politeness Strategies
Get PDFPThis study aims to find variations in the language used by a group of people, especially the Ma-kassar language. The author is interested in finding several ways to apologize in the Makassarlanguage in the context of different situations. The author uses semi-structural interviews inobtaining the data, and has interviewed 3 (three) people who work in the field of culture andhistory at the Lagaligo Museum in the South Sulawesi Archaeological Office. The data foundhas shown that it is interesting to know a number of ways to apologize in the Makassar languageand in different situations, and integrated with language items, speech communities, languagevariations and standard languages. And the most prominent is the variety of languages used inapologizing such as visiting someone, eating and drinking, social interactions such as marriage,apologizing for an error, and others
Religiosity and Purchase Intentions of Halal Food : A Systematic Literature Review
Get PDFThe purpose of this study is to identify and analyze some of the main references related religiosity and purchase intention on halal food products. This research is a bibliometric analysis of systematic literature using VOSviewer with a scientific citation index derived from Science Direct. Based on several phases of systematic review methods, this study obtained 20 important references from the indicated journals ranging from 2020 to 2025. The study also examined the journals involved as well as the number of citations from contributing authors and countries. This study found that the Heliyon journal is the journal that discusses the most about purchase intention in halal food products. In terms of authors, the highest number of citations belongs to Naem Akhtar. This shows that his contribution to academic implementation is quite large. As for the country of origin of researchers, China is the most dominant country of origin of researchers followed by other Asian countries in the top position. Thus, there are opportunities for further research in halal food purchase intention. This research contributes to future research and has greatly contributed to answering research questions and answering questions of religion and consumer intention
Analisis Makna Gramatikal Morfem ريف /Kh-L-F/ dalam Al-Qur'an
No full textPenelitian ini bertujuan untuk mendeskripsikan jumlah dan makna morfem ؾ ي ف
/kh-l
-f/ yang terdapat dalam Al-Qur‟an. Penelitian ini merupakan penelitian
kepustakaan (library research). Subjek penelitian ini adalah Al-Qur‟an. Objek
penelitian ini adalah analisis makna gramatikal morfem ؾ ي ف /kh-l
-f/ yang
terdapat dalam Al-Qur‟an. Data diperoleh dengan teknik baca dan catat. Data
dianalisis dengan teknik analisis deskriptif kualitatif. Teori yang digunakan dalam
penelitian ini adalah teori Chaer tentang makna gramatikal. Data diperoleh dengan
teknik dokumentasi dan dianalisis dengan menggunakan metode pilah unsur. Hasil
yang diperoleh berdasarkan penelitian mencakup hal-hal sebagai berikut : Pertama,
jumlah morfem ؾ ي ف /kh-l
-f/ yang mengalami makna gramatikal adalah berjumlah
50 kata. Bentuk prefiks terdapat pada Al-Quran Surah Al-Baqarah : 80, Ali-Imran :
9 dan 194, Ar-Ra‟d : 31, Ibrahim : 47, Al-Haj : 47, Ar-Rūm : 6, Az-zumar : 20.
Bentuk sufiks terdapat pada Al-Quran Surah Al-Baqarah : 66 dan 255, Ali-Imran :
170, An-Nisa : 9, Al-A‟raf : 17, Al-Anfāl : 57, Maryam : 64, Taha : 110, Al-
Anbiyā‟ : 28, Al-Haj : 76, Saba : 9, Yasin : 9, Fussilat : 14, 25, dan 42, JIn : 27, Al-
A‟raf : 69, 74 dan 150, At-Taubah 118, Yunus : 92, Ar-Ra‟d : 11, Al-Furqan : 62,
An-Naml : 62, Yasin : 45, Al-Ahqaf : 21. Bentuk konfiks terdapat pada Al-Quran
Surah Al-A‟raf : 129 dan 142, At-Taubah : 77, 81 dan 120, Al-Fath : 11, Ibrahim :
22, Taha : 58, 86, 87 dan 97, Az-Zukhruf : 60, Al-Hadid : 7. Bentuk Transfiks
terdapat pada Al-Quran Surah Al-A‟raf : 169 dan Maryam : 59. Kedua, makna
gramatikal morfem ف ي ؾ /kh-l
-f/ yang terdapat dalam Al-Qur‟an adalah
mengingkari, menyalahi, menjadikan berkuasa,memungkiri, yang datang kemudian,
yang di belakang, khalifah-khalifah, perbuatan yang kamu kerjakan, yang
ditinggalkan, yang datang setelahmu, silih berganti, Azab yang akan datang,
menjadikanmu khalifah, gantikanlah aku, yang tertinggal, yang berdiam, melanggar
perjanjian, engkau hindari, pengganti, generasi. Kesimpulan yang dapat diberikan
bahwasannya morfem ؾ ي ف /kh-l
-f/ yang terdapat dalam Al-Qur‟an didominasi
oleh afiksasi bentuk sufiks.71 HalamanSkripsi Sarjan
The Synthesis, Characterization Gd(Iii) Complex with Heptilmethyl- Ditiocarbamate and 2,9-Dimethyl Phenanthroline as Anti-Tuberculosis
No full textMycobacterium tuberculosis is a bacterium that causes tuberculosis infection disease. The aim of this study was to produce complex compounds that have the ability to damage the cell wall of Mycobacterium tuberculosis. Gd(III)Heptylmethyldithiocarbamate 2,9-dimethyl phenanthroline complex was synthesised and characterised by reacting N-heptylmethylamine, carbondisulphide, 2,9-dimethyl phenanthroline and lanthanide group metal ion (Gadolinium) using in situ method. Characterisation was carried out using electrothermal melting point, conductometer, UV-Vis spectrophotometer, and FT-IR spectrophotometer. The resulting Gd(III)Heptylmethyldithiocarbamate 2,9-dimethyl phenanthroline complex was white in colour as much as 7.01%, conductivity 20 Ω-1 and melting point 208-210o C. Testing of complex compounds gave effective results as antibacterial Mycobacterium tuberculosis
Comparative Study of Synthesis and Characterisation of Complex Compounds of Co(II) and Fe(III) Metal Ions with Ligands N-Etilisopropyldithiocarbamate and Its Application as an Additive in Lubricants
Get PDFThe aim of the synthesis and characterization of Co(II) and Fe(III) metal ions with N-Ethylisopropyldithiocarbamate ligands is to produce dithiocarbamate complex molecules that can be utilized in pharmacology, industry, agriculture, and chemistry in the future. The in situ method, which involves reacting secondary amines with carbon disulfide in ethanol solvent (dithiocarbamate ligands) and metals dissolved in ethanol solvent (metal ions), was used to synthesize complicated chemicals. Melting point, conductivity value, FT-IR, and UV-Vis analyses were used to characterize complicated compounds. The resulting Co(II)-N-Etilisopropyldithiocarbamate complex compounds are black in color and Fe(III)-N-Ethylisopropyldithiocarbamate are dark green, with a yield of 64.12% and 41.87%, respectively, with different conductivity values,≠0 (electrolyte compound). From the results of the FT-IR analysis, the presence of Co-S bonds was identified at the absorption band of 362.62 cm-1 and Fe-S at the absorption band of 354.90 cm-1. Maximum wavelength absorption UV-Vis, Co(II) (λmax = 330 nm) > Fe(III) (λmax = 310 nm). Characterization results based on the measurement of kinematic viscosity values, Fe(III)-N-ethylisopropyldithiocarbamate complex compounds are more effective as the additives in lubricants than Co(II)-N–Ethylisopropyldithiocarbamate at a temperature of 100 oC
Kajian Isoterm Adsorpsi Linear Alkilbenzena Sulfonate (LAS) dalam Limbah Cair Detergen Menggunakan Biosorben Ampas Kopi dan Ampas Kelapa
Get PDFOne of the efforts to minimize the impact of detergent waste pollution is by adsorption using coffee dregs and coconut dregs adsorbents. The purpose of this study was to determine the optimum mass of coffee grounds and coconut pulp as adsorbents, to compare the effectiveness of their absorption in decreasing levels of Linear Alkyl Benzene Sulfonate, and to study their adsorption isotherm models. This research was conducted in batches with variations in the mass of each adsorbent, namely 1 gram, 2 grams, 3 grams, 4 grams and 5 grams. This research was conducted in batches with variations in the mass of each adsorbent, namely 1 gram, 2 grams, 3 grams, 4 grams and 5 grams. The detergent waste samples were contacted with the adsorbent for 30 minutes and then the absorption capacity was tested using the Methylene Blue test method. The results showed that the optimum absorption of LAS content from coffee grounds and coconut pulp adsorbents occurred at a mass of 2 grams with the greatest increase in absorption efficiency index Coconut dregs adsorbent is more effective than coffee dregs because it can absorb up to 37%, while coffee dregs are only 10% with the same adsorbent mass of 5 grams. The adsorption isotherm model of the 2 types of adsorbents refers to the Langmuir equilibrium with R2 values for coffee grounds 0.8651 and coconut pulp 0.9868.Salah satu upaya meminimalisir dampak pencemaran limbah detergen yaitu dengan melakukan adsorpsi menggunakan Adsorben Ampas Kopi dan Ampas Kelapa. Tujuan dari penelitian ini adalah untuk mengetahui massa optimum ampas kopi dan ampas kelapa sebagai adsorben, mengetahui perbandingan efektivitas daya serapnya dalam penurunan kadar Linear Alkyl Benzena Sulfonat, serta mengkaji model isoterm adsoprsinya. Penelitian ini dilakukan secara batch dengan variasi massa masing-masing adsorben yaitu 1 gram, 2 gram, 3 gram, 4 gram, dan 5 gram. Sampel limbah detergen dikontakkan pada adsorben selama 30 menit lalu dilakukan uji daya serap menggunakan metode uji Methylene Blue.Hasil penelitian menunjukkan bahwa penyerapan kadar LAS optimum dari adsorben ampas kopi dan ampas kelapa terjadi pada massa 2 gram dengan indeks kenaikan efisiensi penyerapan paling besar. Adsorben ampas kelapa lebih efektif dari ampas kopi karena mampu menyerap hingga 37% sedangkan ampas kopi hanya 10% dengan massa adsorben yang sama sebanyak 5 gram. Model Isoterm adsorpsi dari 2 jenis adsorben tersebut mengacu pada kesetimbangan Langmuir dengan nilai R2 untuk ampas kopi 0.8651 dan ampas kelapa 0.9868
PEMANFAATAN PATI DARI KULIT SINGKONG MENJADI GULA CAIR DI PERUMAHAN BUMI SALAM SEJAHTERA 2 (BSS 2) MONCONGLOE BULU
Get PDFResidents of Bumi Salam Sejahtera 2 (BSS 2) Moncongloe Bulu Village, use their empty land to plant cassava. Currently, residents process cassava into fried cassava, cassava chips and other cassava preparations. Food process produces waste in the form of cassava peel cause a bad smell, build up rubbish and pollute the environment. Meanwhile, the need for sugar in Indonesia continues to increase every year, which results in sugar imports, so that alternative non-cane sweeteners are needed as raw materials for making sugar. Cassava skin has a high carbohydrate content so can be processed into raw materials for glucose production. Glucose is a material containing polysaccharides obtained from starch. The starch can be broken down by the amylase enzyme into sugar. The Community Partnership Program (PKM) aims to increase the selling value of cassava peel, as solution to overcome environmental pollution, and increase residents' income. The target achieved is the formation of economically independent community groups through entrepreneurial activities that utilize cassava peels into liquid sugar that is ready to be sold or consumed daily. The output target of this PKM is scientific articles published nationally, so that they can provide benefits to the wider community. This activity is carried out Socialization, Demonstration and Training.
Keywords: Moncongloe Bulu, Cassava Peel, Starch, Liquid Suga
Pemanfaatan Ekstrak Belimbing Wuluh (Avverhoa bilimbi L.) Menjadi Sabun Cuci Piring
Get PDFWuluh star fruit is a plant that is rich in benefits. The population of this plant is very abundant in the community both in the yard or as a shade plant in the yard. The population of this plant is not proportional to its utilization so that the star fruit usually falls and rots. Seeing this, a community service activity was carried out regarding the use of starfruit into dish soap, which besides being able to add to the economic value of starfruit, can also reduce environmental pollution. Wuluh star fruit (Averrhoa bilimbi L.) contains saponins, flavonoids, acetic acid, and vitamin C. Saponins have the ability to kill bacteria while flavonoids can destroy bacterial proteins by lysis method so that bacteria cannot reproduce and die. Saponins also function as a foam producer so that they can be used in the manufacture of dish soap.
Keywords: Wuluh star fruit, saponin, dish soa
Case report: Teflon granuloma following microvascular decompression manifesting as light-triggered trigeminal neuralgia
Get PDFTrigeminal Neuralgia is commonly triggered by stimuli in the area of the trigeminal nerve innervation. We report an exceptionally rare case of a 61-year-old woman who complained of recurrent trigeminal neuralgia, which sole trigger was seeing a bright light. Teflon felt that was placed on the nerve root in the initial surgery was suspected of causing this rare type of trigeminal neuralgia. A reflex circuit linking luminance to trigeminal nerve activity may be implicated in activating a trigeminal nociceptive pathway by a bright light trigger
