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Synthesis of Pyridine Derivative-based Chemosensor for Formaldehyde Detection Nurul Hidayah; Bambang Purwono; Beta Achromi Nurohmah; Harno Dwi Pranowo
Indonesian Journal of Chemistry Vol 19, No 4 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.057 KB) | DOI: 10.22146/ijc.44028

Abstract

Compound of 3,3'-(4-(2-amino-4,5-dimethoxyphenyl)pyridine-2,6-diyl)dianiline (CHP) has been synthesized via three-step synthetic procedure from veratraldehyde as starting material and 4-(4,5-dimethoxy-2-nitrophenyl)-2,6-bis(3-nitrophenyl)pyridine (CHP-1) as an intermediate compound. The CHP-1 was reduced using hydrazine hydrate catalyzed by 10% Pd/C to the final target of CHP. The spectroscopic study revealed that CHP in acetonitrile could detect formaldehyde through fluorescence enhancement and showed color change from yellow to blue under the 365 nm portable ultraviolet lamp as a response. Based on the fluorescence spectra, the emission wavelength of CHP in acetonitrile was shifted from 526 to 480 nm after addition of formaldehyde. Limit detection (LOD), selectivity, sensitivity, and computational study geometry of CHP as a chemosensor for formaldehyde has also been investigated. CHP could also be applied as a test paper for the detection of formaldehyde qualitatively.
Analysis of packaging defect on goat milk caramel candy in Etawa Agroprima Khansa Aulia Arinda Putri Ari Yahyono; Nurul Hidayah
Journal of Halal Science and Research Vol. 4 No. 1 (2023): February
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jhsr.v4i1.7243

Abstract

Goat's milk has the same benefits as cow's milk. Goat's milk contains many nutrients, especially complete protein from all kinds of essential amino acids. Etawa Agroprima is a company engaged in the processing and marketing dairy products. One of the products produced is goat's milk caramel candy. These candies are packaged using candy wrappers and diamond paper, which is covered with paper again, then put into PE plastic, sealed using a sealer, and put in a cardboard box. This packaging is intended to maintain the quality of the candy because the candy is easily runny if left open so that the caramel candy is not easily damaged. Writing this final project aims to determine the types of defects that occur in caramel candy products, the number of defective products for the entire product, and the causes of product defects—analysis of product types and defects using Pareto diagram analysis, while the cause using fishbone diagram analysis. Analysis of the data obtained on Etawa Agroprima using the two diagrams shows that the results of the Pareto diagram analysis show three types of defects, including torn packaging 75.56%, damaged packaging 13.33%, and no expiration label 11.11%. Then from the fishbone diagram analysis, it can be seen that the main factor causing defects in goat's milk caramel candy products is the packaging factor. Some root causes include manual production and packaging work, not using modern packaging equipment, contamination by physical contact, etc. Therefore, it is necessary to use automatic packaging tools.
Analysis of marketing strategies to maximize product sales at "Won.dis Cokelat" Nurul Latifah; Nurul Hidayah
Journal of Halal Science and Research Vol. 4 No. 2 (2023): September
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jhsr.v4i2.7247

Abstract

As time progresses, the structure within a business entity changes. Intense competition and business development are factors contributing to these changes. Consequently, each business entity formulates strategies to enhance sales in the competitive market. In this specific practical work, we analyzed the marketing strategy at Won.dis Chocolate to understand how their marketing approach contributes to increased product sales. Data collection techniques employed in this study included qualitative methods such as observation, participation, interviews, literature review, and questionnaires. The data analysis methods included the IFE (Internal Factor Evaluation) matrix, EFE matrix (External Factor Evaluation), SWOT Cartesian diagram analysis, and SWOT matrix. The analysis and observations yielded three key findings. Firstly, Won.dis Chocolate boasts two significant strengths: innovation in new product development and possessing product legitimacy, including halal certification from MUI and intellectual property rights registration. However, its most significant weakness lies in its less strategic location and limited production machine capacity. Secondly, the major opportunity for Won.dis Chocolate lies in its strong relationships with content creators and several universities, while a potential threat is posed by competitors with more strategic locations. Thirdly, Won.dis Chocolate is positioned to pursue both "Grow" and "Build" strategies. Keywords: SWOT analysis, IFE and EFE matrices, Won.dis Chocolate
A Turn-off Fluorescent Chemosensor for Detecting Formaldehyde Based on Pyridine Derivative Nurul Hidayah; Bambang Purwono
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol 10, No 2 (2023): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v10i2.25573

Abstract

Formaldehyde in solution, commonly known as formalin, is often utilized. In Indonesia, there is widespread misuse of formalin as a food preservative. Formaldehyde has been identified as a carcinogenic substance by the International Agency for Research on Cancer (IARC) and the Environmental Protection Agency (EPA). Based on this background, the present study developed a sensor compound capable of detecting formaldehyde obviously. The compound 3'-(4-(3,4-dimethoxyphenyl)pyridine-2,6-diyl)dianiline (ChP-2A) has been successfully synthesized through the reduction reaction of the compound 4-(3,4-dimethoxyphenyl)-2,6-bis(3-nitrophenyl)pyridine (ChP-0A) using 80% hydrazine hydrate and 10% Pd/C as a catalyst. The ChP-2A compound in acetonitrile exhibits a significant decrease in fluorescence intensity (turn-off) after the addition of formaldehyde, and it has been successfully applied in the form of a test paper for the detection of formaldehyde qualitatively
Pelatihan Konselor Sebaya Pada Guru Sekolah Inklusi Muhammad Erwan Syah; Wina Driyan Pradana; Deni Santi Pertiwi; Nurul Hidayah
Gotong Royong : Jurnal Pengabdian, Pemberdayaan Dan Penyuluhan Kepada Masyarakat Vol. 3 No. 2 (2024): Gotong Royong (JP3KM) Juni 2024
Publisher : Mata Pena Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51849/jp3km.v3i2.46

Abstract

Tujuan dari pengabdian kepada masyarakat ini adalah untuk memberikan pengetahuan serta meningkatkan psychological well being melalui konseling sebaya pada guru di sekolah penyelenggara pendidikan inklusi. Guru di sekolah penyelenggara pendidikan inklusi Kota Yogyakarta jenjang Sekolah Dasar mengalami banyak permasalahan dan beban kerja pada penyelenggara pendidikan inklusi, sedangkan faktor tenaga pendidik memiliki pera penting dalam pencapaian kualitas pendidikan secara umum. Banyaknya tuntutan kerja dan kurangnya dukungan sosial pada guru menjadikan beban guru semakin berat. Dukungan sosial menjadi salah satu faktor yang mempengaruhi psychological well being pada seseorang. Sasaran dalam pengabdian yaitu 45 guru dengan tujuan untuk memberikan pengetahuan serta meningkatkan psychological well being melalui konseling sebaya pada guru di sekolah penyelenggara pendidikan inklusi. Kegiatan ini dilaksanakan pada bulan Mei 2024. Hasil dari pelatihan konselor sebaya ini menunjukan pengaruh yang positif pada psychological well being pada guru di sekolah penyelenggara pendidikan inklusi dilihat dari adanya peningkatan yang baik setelah guru diberikan pelatihan tersebut. Pada akhir sesi dari kegiatan pelatihan ini siswa terlihat lebih bersemangat, gembira, dan antusias hal tersebut menunjukan bahwa siswa merasa lebih baik dari sebelumnya.
Pendampingan Implementasi Effective Communication Training Service pada Kader Posyandu Kelurahan Bener Yogyakarta Sebagai Upaya Menurunkan Stunting Menuju Generasi Emas 2045 Muhammad Erwan Syah; Novita Nirmalasari; Nurul Hidayah
Gotong Royong : Jurnal Pengabdian, Pemberdayaan Dan Penyuluhan Kepada Masyarakat Vol. 4 No. 1 (2024): Gotong Royong (JP3KM) Desember 2024
Publisher : Mata Pena Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan kegiatan adalah untuk meningkatkan pengetahuan dan keterampilan komunikasi efektif kader Posyandu Balita. Kegiatan yang dilakukan diantaranya (1) Pelatihan ECTS (Effective Communication Training Service) pada Kader Posyandu bagi kader posyandu; (2) Pendampingan kader posyandu mengimplementasikan ECTS; (3) Psikoedukasi ini bertujuan untuk menyampaikan hasil pemeriksaan saat posyandu, dan kader posyandu menyampaikan informasi tahap tumbuh kembang dan pola asuh kepada anggota posyandu atau ibu dengan balita. Kegiatan pengabdian kepada Masyarakat ini diikuti oleh 65 kader posyandu Kelurahan Bener. Kegiatan ini dilaksnakan pada bulan Juli hingga September 2024. Hasil dari pengabdian ini diantaranya (1) Pengetahuan komunikasi efektif pada kader Posyandu meningkat yang dapat diimplementasikan untuk memperkaya dalam teori dan praktik saat melaksanakan Posyandu; (2) Pengetahuan ketrampilan komunikasi efektif meningkat yang digunakan oleh kader Posyandu kepada ibu dengan balita pada saat posyandu dan psikoedukasi; (3) Mempercepat transfer pengetahuan dan penagalaman kepada kader Posyandu untuk mempersiapkan generasi penerus Posyandu yang terampil dalam berkomunikasi kepada ibu dengan balita saat Posyandu dan psikoedukasi; (4) Kader Posyandu Balita mendapatkan pengetahuan kolektif mengenai komunikasi efektif, tahap tumbuh kembang anak dan pola asuh untuk menurunkan stunting menuju generasi emas 2045; (5) Kader Posyandu Balita memperoleh pengetahuan praktis untuk pengembangan dan peningkatan sarana prasarana pendukung kegiatan pelatihan dan pendampingan implementasi ECTS
Hedonic Test Analysis and Feasibility of The Selling Price of Cocoa Seed Waste Products in PT XYZ Kulon Progo, Yogyakarta Sari, Oktavia Nurmalita; Hidayah, Nurul; Rahayu, Wahidah Mahanani
Journal of Agri-Food Science and Technology Vol. 2 No. 2 (2021): August
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jafost.v2i2.5901

Abstract

Innovative use of waste into herbal beverage products the waste treatment process starts from the stage of roasting cocoa beans, breaking the beans and peeling the skin, sorting, drying, preparation of packaging and materials, filling and mixing, giving silica gel and labelling the expiration date. The raw materials needed are cocoa bean husk, dried cardamom, and cinnamon powder. While the packaging material uses PET plastic bottle packaging. Before the product is marketed, it is necessary to conduct a feasibility analysis of the selling price. The analysis shows that the selling price of chocolate product of Rp. 15,000 is feasible because profit taking is 48% with the selling price per unit more than the cost per unit. The net profit margin of chocolate product of 32.6% means that the company is considered efficient in determining the selling price of its products and successfully controlling costs in it because the NPM figure is > 5%. Hedonic tests were also conducted to determine consumer acceptance of the product through a hedonic test of 20 panelists based on the parameters of color, aroma, taste, and packaging. The hedonic test scale 1 shows that consumers do not like it very much, a scale 2 does not like it, a scale 3 likes it, and a scale 4 likes it very much. The average level of preference for color parameters is 3.58, aroma is 3.31, taste is 3.47, and packaging is 3.84 which indicates that the panelists like these 4 parameters.
Hedonic Test of Pegagan Chocolate Products at PT XYZ Iryani, Dian; Hidayah, Nurul
Journal of Agri-Food Science and Technology Vol. 2 No. 2 (2021): August
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jafost.v2i2.6440

Abstract

Handling of raw materials for cocoa beans is an important process to maintain the quality of the processed chocolate. There are several stages carried out in the post-harvest cocoa process including fruit picking, fruit breaking, cocoa bean fermentation, drying cocoa beans and storage. The purpose of this study was to determine whether or not a sensory assessment of the preference for pegagan chocolate was made, and to analyze the panellists’ level of acceptance of pegagan chocolate. Pegagan leaf chocolate is produced with the aim of providing good nutrition, brain multivitamins and memory enhancers. Sensory assessment of the hedonic test using 20 untrained panellists from the parameters measured were color, taste, texture, aroma and shape. The panellists’ acceptance of chocolate with the addition of pegagan leaves was that the majority liked the chocolate on all parameters.
Chemical Characteristics of Non-Dairy Cheese from Coconut Milk as an Alternative Ingredient for Lactose Intolerance Halim, Judella Kusuma; Hidayah, Nurul; Juwitaningtyas, Titisari; Mutmainah, Mutmainah; Fitriani, Aprilia
Journal of Agri-Food Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jafost.v4i1.8724

Abstract

Lactose-intolerant people are unable to ingest cheese since it includes lactose. Lactose-free cheese can be made using coconut milk as an alternative. Coconut milk can substitute milk as a raw material for cheese production because it is rich in proteins such as albumin, globulin, prolamin, and glutelin. This research aims to determine how different proportions of coconut milk and soy extract affect the nutritional value of coconut milk cheese. Cheeses with 80:20, 70:30, and 60:40 ratios of coconut milk to soy extract are made by directly acidifying soy extract with lemon juice. Protein, lipid, and moisture content were all evaluated. At compositions 80:20, 70:30, and 60:40, the protein content of coconut milk cheese was 3.85%; 4.80%; and 5.73%, respectively. Coconut milk cheese had lipid contents of 28%, 27%, and 25.74%, respectively; the moisture contents were 64.93%; 61.92%; and 60.49%. This research contributes to utilizing coconut milk as a milk substitute.
Optimization of lemongrass cultivation into essential oil in Tunggularum, Wonokerto Hidayah, Nurul; Fathurrahman , Haris Imam Karim; Fitriani , Aprilia; Sabila, Liya Yusrina
Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Vol. 8 No. 3 (2024)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jpm.v8i3.11601

Abstract

The empowerment of the community in Tunggularum, Wonokerto, aims to optimize lemongrass (Cymbopogon citratus) cultivation into essential oil products through community-based training and practical skills development. Lemongrass is widely cultivated in the area but is underutilized due to limited knowledge of its potential economic value, particularly in essential oil production. This community service project focused on addressing this gap through two primary activities: a socialization session on the essential oil distillation process and hands-on training in the operation of distillation equipment. The project involved 20–25 local participants, predominantly women, who attended both the theoretical and practical sessions. The results showed significant improvements in the participants' knowledge and skills. Over 70% of participants reported feeling more capable of managing the local lemongrass resources and demonstrated an enhanced understanding of the distillation process. The training also fostered new skills in operating distillation equipment, which further encouraged the participants to explore the business potential of lemongrass essential oil production.