Abstrak
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Penelitian ini dilatarbelakangi oleh belum termanfaatkannya limbah kulit singkong di Sumatera Barat meskipun produksi singkong mencapai 143.330,00 ton pada tahun 2022. Kulit singkong yang mencapai 15-20% dari total berat umbi sering dianggap sebagai limbah yang dapat mencemari lingkungan, padahal memiliki kandungan gizi yang cukup baik meliputi protein 8,11 gram, serat kasar 15,20 gram, dan kalsium 0,63 gram per 100 gram bahan. Penelitian ini bertujuan untuk menganalisis kualitas keripik dari kulit singkong meliputi aspek bentuk, warna, aroma, tekstur, dan rasa melalui uji sensori. Penelitian ini menggunakan metode kuantitatif dengan pendekatan eksperimental. Pengujian dilakukan di workshop tata boga Departemen Ilmu Kesejahteraan Keluarga, Fakultas Pariwisata dan Perhotelan, Universitas Negeri Padang. Objek penelitian adalah keripik yang terbuat dari kulit singkong jenis lambau (ubi manis). Proses pengolahan meliputi perendaman kulit singkong selama 3 hari dengan penggantian air setiap 24 jam, perebusan selama 30 menit, penjemuran 2-3 hari, dan penggorengan. Uji organoleptik dilakukan oleh 6 orang panelis terlatih dari kalangan dosen Tata Boga UNP dengan pengujian sebanyak tiga kali, menggunakan instrumen penilaian kualitas bentuk, warna, aroma, tekstur, dan rasa dengan skala 1-5. Hasil penelitian menunjukkan kualitas sensori keripik kulit singkong pada pengujian ketiga memperoleh nilai tertinggi dengan parameter warna 4,83 kategori "coklat", tekstur 4,67 kategori "renyah", aroma 4,33 kategori "cukup beraroma khas kulit singkong", rasa 4,50 kategori "cukup gurih", dan bentuk 4,33 kategori "cukup rapi dan seragam". Keberhasilan mengolah limbah kulit singkong menjadi produk keripik dengan kualitas sensori yang baik menunjukkan potensi besar untuk pengembangan produk pangan bernilai ekonomis sekaligus berkontribusi pada pengurangan pencemaran lingkungan. Hasil penelitian ini membuktikan bahwa limbah kulit singkong dapat dimanfaatkan sebagai alternatif makanan ringan yang memiliki nilai ekonomis dan ramah lingkungan.
 
Abstract
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This research is motivated by the unused cassava peel waste in West Sumatra even though cassava production reached 143,330.00 tons in 2022. Cassava skin, which reaches 15-20% of the total weight of the tubers, is often considered waste that can pollute the environment, even though it has a fairly good nutritional content including 8.11 grams of protein, 15.20 grams of crude fiber, and 0.63 grams of calcium per 100 grams of ingredients. This study aims to analyze the quality of chips from cassava peels including aspects of shape, color, aroma, texture, and taste through sensory tests. This study uses a quantitative method with an experimental approach. The test was carried out at the culinary workshop of the Department of Family Welfare Sciences, Faculty of Tourism and Hospitality, Padang State University. The object of the research is chips made from cassava skins of the lambau type (sweet potato). The processing process includes soaking the cassava peel for 3 days with water change every 24 hours, boiling for 30 minutes, drying for 2-3 days, and frying. The organoleptic test was carried out by 6 trained panelists from UNP Culinary Lecturers with three tests, using an instrument to assess the quality of shape, color, aroma, texture, and taste on a scale of 1-5. The results showed that the sensory quality of cassava peel chips in the third test obtained the highest score with color parameters of 4.83 in the "brown" category, 4.67 in the "crispy" category, 4.33 in the aroma category "quite aromatic typical of cassava skin", 4.50 in the "quite savory" category, and 4.33 in the "quite neat and uniform" category. The success of processing cassava peel waste into chips products with good sensory quality shows great potential for the development of food products with economic value while contributing to the reduction of environmental pollution. The results of this study prove that cassava peel waste can be used as an alternative to snacks that have economic and environmentally friendly value.
 

This study aims to determine the effect of the addition of grape leaf extract to chitosan edible coating on vitamin C and phenolic content of red grapes on day 0 and 7 storage at room temperature. This study used a completely randomized design (CRD) with four concentrations of grape leaf extract (0%, 3%, 4%, and 5%). Measurement of vitamin C and phenolic content was done using UV-Vis spectrophotometric method. The results showed that the addition of grape leaf extract significantly increased the vitamin C content of grapes both on day 0 and day 7, with the highest level found in the 5% treatment. Phenolic content increased at 3% concentration on day 0 but decreased at 3% concentration on day 7. Two Way Anova statistical test showed a significant effect of extract concentration and storage time on vitamin C and phenolic content. The addition of grape leaf extract into chitosan edible coating was effective in maintaining vitamin C and phenolic content and extending the shelf life of grapes at room temperature. These findings support the potential use of natural materials as plant-based preservatives in food coating systems.

Flights from Bima to Yogyakarta can be done via transit or non-transit flight routes. The selection of flight routes carried out by cadets of the Yogyakarta Aerospace Technology College (STTKD) is quite important to know the factors that are considered in choosing the flight route to be taken, in addition, this route selection offers different alternatives in terms of travel time, ticket costs and comfort in transit and non-transit flights. With accurate information, cadets can choose the most efficient and economical option, so as to minimize their experience in traveling using air transportation. The research method used in this study is a qualitative research method. Where this research method is a method of research that is descriptive and tends to use analysis. Based on the results of data analysis of five selected sources, it shows that the selection of flight routes from Bima to Yogyakarta is influenced by several main factors such as travel time, price, and comfort. In this study, the data validity checking technique used is the triangulation technique, where the triangulation technique is to test the credibility of the data carried out. In the selection of transit flight routes, the comfort of the service is more dominant, while for non-transit flight routes, the ticket price and travel time are more dominant. Of the two flight routes, each has its own main factors in selecting a flight route, namely price, travel time, and comfort.

The aim of this research is to analyze the accuracy and efficiency of the Centralized KPPN Salary Application in managing state finances, especially in terms of main salary distribution. This research uses a qualitative descriptive method with primary data sources in the form of interviews and secondary data in the form of documentation. The research results show that this application is able to increase efficiency through automation processes, reduce manual intervention, and speed up data reconciliation. Accuracy is also increased with an automatic validation system that ensures accuracy in calculating and recording salaries. Compared to manual mechanism, this application is able to reduce the potential for errors, speed up data processing, and optimize electronic document management.

This research focuses on optimising precise Brushless DC (BLDC) motor speed control using a Proportional-Integral-Derivative (PID) controller. The fundamental problem lies in the performance of PID control, which is highly dependent on the accuracy of determining its gain parameters (Kp, Ki, Kd), where manual tuning methods often do not provide satisfactory results. Therefore, the objective of this study is to apply the Ziegler-Nichols systematic method to the PID control tuning process for BLDC motors and then evaluate the performance of the resulting system based on key response time parameters such as rise time, settling time, overshoot, and steady-state error. The proposed method involves designing a mathematical model of the BLDC motor and applying the Ziegler-Nichols technique, specifically the Ultimate Oscillation Method, to systematically derive the values of Ku and Pu which are then used to calculate Kp (5.1), Ki (22.7), and Kd (0.29). The main findings show a dramatic performance improvement in the BLDC speed control system after the implementation of the tuned PID; the rise time is significantly reduced from 0.3728 seconds (without PID) to 0.0041 seconds, the settling time improves from 0.6642 seconds to 0.0073 seconds, and most importantly, the steady-state error of 45.38% is eliminated to 0%.  The main idea synthesis is that the Ziegler-Nichols method provides an effective and practical approach to PID parameter optimization, resulting in a highly responsive, accurate and stable BLDC motor control system. In conclusion, this study successfully demonstrates that applying a PID controller with parameters determined via the Ziegler-Nichols method significantly improves the speed control quality of a BLDC motor, overcoming the steady-state error problem and substantially improving the transient response characteristics.

Penelitian ini bertujuan untuk menganalisis risiko operasional yang timbul akibat ketidaktuntasan pekerjaan oleh karyawan di PT X, sebuah perusahaan yang bergerak di bidang teknologi informasi. Permasalahan ini bermula ketika beberapa pegawai diketahui tidak menyelesaikan pekerjaan sejak Oktober hingga April dan mengundurkan diri tanpa tanggung jawab, sehingga menimbulkan beban kerja yang menumpuk dan berdampak pada terganggunya alur operasional perusahaan. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan teknik wawancara mendalam kepada pihak-pihak terkait, seperti atasan, staf administrasi, dan teknisi. Hasil penelitian menunjukkan bahwa ketidaktuntasan pekerjaan berdampak langsung pada penurunan efisiensi kerja, peningkatan beban lembur, serta kerugian finansial akibat keterlambatan penagihan jasa. Permasalahan ini diperparah oleh lemahnya sistem monitoring dan tidak adanya evaluasi kinerja secara berkala. Penelitian ini merekomendasikan pentingnya evaluasi progres kerja, pembentukan sistem pengawasan internal yang ketat, serta pelatihan manajemen risiko bagi karyawan. Diharapkan temuan ini dapat menjadi acuan dalam penguatan sistem manajemen risiko operasional di perusahaan.

This study aims to identify forms of violations of the right to health services in the implementation of BPJS Kesehatan, analyze the factors that cause them, and formulate preventive and limiting solutions. The research used a descriptive qualitative approach with in-depth interviews with six informants who were active BPJS Health participants in Tanjung Sari, East Jambi. The results showed that there was service discrimination in the form of different treatment between BPJS patients and general patients, patient rejection, administrative obstacles in emergency situations, and unavailability of drugs and medical facilities. Contributing factors include unequal distribution of health facilities, limited human resources, and a weak monitoring system. The experiences of BPJS participants confirm the gap between the program's objectives and the reality on the ground, reflecting a denial of the state's obligation to guarantee citizens' health rights. Comprehensive efforts are needed, including public education, administrative simplification, equitable distribution of health facilities, enforcement of strict sanctions, and active community involvement to realize quality and equitable health services.

In today's highly competitive culinary industry, one of the most important strategies to attract and retain customers is product differentiation. Differences can provide value and set a business apart from its competitors. Examples of differentiation include innovative menu items, premium raw materials, distinctive flavors, and brand image. The goal of this study is to analyze the relationship between product differentiation and customer loyalty at Kinikawa Coffee Shop in Pangkal Pinang. As part of a quantitative research plan using survey techniques, questionnaires were distributed to one hundred active customers. The validity and reliability of the research instrument were examined, and simple linear regression analysis of the data was performed using SPSS software. The findings of the study indicate that customer loyalty is positively related. Customer loyalty to Kinikawa increases along with their opinions regarding the company's efforts to stand out from the competition.. This research highlights the importance of using differentiation tactics when building lasting relationships with clients, especially in the local coffee shop industry facing tight and fluctuating competition.

This study aims to evaluate the impact of job stress and emotional exhaustion (burnout) on employees’ intention to resign (turnover intention), considering the importance of retaining high-quality personnel for companies. High levels of job stress often lead to psychological and emotional strain that harms employee well-being, which may, in turn, increase their desire to leave the job. Additionally, burnout—characterized by emotional fatigue, depersonalization, and reduced personal accomplishment—also contributes to the rise in turnover intention. This research adopts a quantitative approach using a survey method, where data were gathered from employees of PT XYZ, a company engaged in providing books and digital educational platforms. The purposive sampling technique was used to collect responses through distributed questionnaires. Statistical analysis was conducted using SPSS IBM version 29 to examine the direct effects of job stress, burnout, and turnover intention. The findings indicate that job stress has no significant influence on the turnover intention of employees at PT XYZ. However, the burnout variable shows a positive and significant effect on employees’ intention to leave. These results underscore that excessive stress and severe burnout can heighten the risk of turnover within an organization. Therefore, it is crucial for companies to implement effective strategies to manage job stress and prevent burnout in order to reduce employees’ turnover intention.

Vitamin D deficiency is a condition that often goes unnoticed but has widespread health implications, particularly among the adult population. Through this community service activity, vitamin D levels were screened in 49 adult participants in the Danau Sunter area using serum 25(OH)D testing, accompanied by education on the importance of vitamin D, its natural sources, and strategies for preventing deficiency. The results showed variation in vitamin D levels among participants, with a mean of 59.13 ng/mL and a range of 26.6–91.8 ng/mL. A total of 3 participants (6.12%) were found to have vitamin D deficiency. Several individuals were identified as being in the deficiency category, requiring further intervention. The educational component played an important role in increasing participants’ awareness and understanding of the role of vitamin D in preventing musculoskeletal and metabolic complications. This program successfully identified individuals in the community with vitamin D deficiency and improved knowledge regarding its prevention.
 
Keywords: Early Detection, Deficiency, Vitamin D