cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Wenny Bekti Sunarharum
Contact Email
wbsunarharum@ub.ac.id
Phone
+62895331433147
Journal Mail Official
jcs@ub.ac.id
Editorial Address
Directorate of Research and Community Service, Gedung Layanan Bersama, 7th Floor, Jl. Veteran Malang, Universitas Brawijaya, 65145, Jawa Timur, Indonesia
Location
Kota malang,
Jawa timur
INDONESIA
Journal of Coffee and Sustainability
Published by Universitas Brawijaya
ISSN : -     EISSN : 30627362     DOI : http://doi.org/10.21776/ub.jcs
Core Subject : Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science Other
Journal of Coffee and Sustainability (JCS) aims to disseminate and exchange research outcomes related to coffee and sustainability, strengthen the international network and international recognition of Indonesian researchers, and foster the development of coffee and related fields to contribute to addressing a global coffee challenge. JCS published scientific papers in review, short report, and articles on coffee-related topics in agriculture, agroforestry, agribusiness, biological, coffee-based industry, food science, waste management, health, economy, tourism, technology, gastronomy, culture, and other social sciences.
Arjuna Subject : Umum - Umum
Articles 5 Documents
 1 
Search results for , issue "Vol. 1 No. 2 (2024)" : 5 Documents clear
The Effect of Coffee Consumption on Individuals with Acute Stress Disorder Masayu Nandhia Dwiputri; Ramadhani, Aji Fajar
Journal of Coffee and Sustainability Vol. 1 No. 2 (2024)
Publisher : Directorate of Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jcs.2024.01.02.01

Abstract

Caffeine, or the consumption of coffee with antioxidant content, has many benefits, one of which is reducing symptom stress in individuals. Research purposes This is to know the influence of consuming coffee against declining symptoms of stress in individuals with Stress Acute Disorder who experienced​ traumatic incidents. Research methods This quantitative approach experiment uses one group pre-test - post-test design. Pre-test and post-test will be measured using the Acute Stress Disorder Scale (ASDS) in individuals diagnosed with the Stress Acute Disorder. There are eight types of acute sex: men and women aged 20-25 years. Treatment is done by giving the subjects two glasses of coffee daily with a dose of 10 mg or equivalent with 25-35 ml of liquid espresso. The paired sample t-test showed results that the mean for the average result is 32,750 marks. This is the difference between the average values pre-test and post-test with a Sig of 0.000 (p < 0.50). The results of the paired sample t-test are known as t value = 55,499. This matter is worth positive because the average pre-test score is taller than the mean post-test score, meaning fewer stress symptoms exist in individuals with Stress Acute Disorder.
Evaluation of the Effect of Different Doses of X-Ray Irradiation on the Physicochemical and Microbiological Profiles of Liberica Green Coffee Beans Khairunnisa, Meutia Irdina; Kartika, Annisa Aurora; Sunarharum, Wenny Bekti; Mahatmanto, Tunjung
Journal of Coffee and Sustainability Vol. 1 No. 2 (2024)
Publisher : Directorate of Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jcs.2024.01.02.03

Abstract

Liberica coffee has significant potential for cultivation and trade in Indonesia. The coffee trade requires effective post-harvest processing to maintain commodity quality. X-ray irradiation offers several advantages as a post-harvest processing method. However, research on X-ray irradiation remains limited. This study was designed to determine the effect of different doses of X-ray irradiation on the microbiological and physicochemical characteristics of Liberica green coffee beans and to identify the optimal dose for treatment. The research employed a randomized block design (RBD) method with five different doses of X-ray irradiation: 0 kGy, 2.7 kGy, 5.4 kGy, 7.2 kGy, and 10.8 kGy. The results indicated that varying doses of X-ray irradiation had no discernible effect on the color, water, protein, and fat content of Liberica green coffee beans. However, differences in the X-ray irradiation dose significantly affected the degree of acidity (pH), caffeine content, total sugar, antioxidants, and phenol levels in the beans. Additionally, there was a decrease in the Total Plate Count (TPC) with increasing doses of X-ray irradiation. The best treatment achieved was at an irradiation dose of 7.2 kGy.
The Effect of Compost, Cow, and Goat Manure on Inceptisols Soil Characteristics From Smallholder Plantation, Karangploso District, Malang Regency Soemarno; Pramesti, Gitri Ardia; Putrideny, Ayesha Ammara; Ifadah, Nisfi Fariatul
Journal of Coffee and Sustainability Vol. 1 No. 2 (2024)
Publisher : Directorate of Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jcs.2024.01.02.02

Abstract

Inceptisol soils mainly have medium to high physical properties. However, these physical properties can be degraded if there is a limiting factor in the terrain, which is the degree of slope and low SOC. On steep slopes, soil infiltration rates decrease, which leads to the limited available soil moisture in root zone subsoil. Application of compost or manure into the soil can improve soil physical properties and increase the soil organic carbon (SOC), it improves soil porosity and improve available water capacity (AWC).  This study used the factorial completely randomized design with 8 treatments and 4 replications. The treatments included (Control + Topsoil), (Control + Subsoil), (Compost + Topsoil), (Compost + Subsoil), (Cow manure + Topsoil), (Cow manure + Subsoil), (Goat manure + Topsoil), (Goat manure + Subsoil). The results showed that (1) the addition of compost and manure can improve the physical properties of topsoil and subsoil, reducing macro porosity, increasing meso and microporosity, and increasing field capacity. (2) The addition of compost and manure can increase the water holding capacity of topsoil by 36.72% at 1 MAI to 41.12% at 5 MAI and inceptisol subsoil by 35.27% at 1 MAI to 36.42% at 5 MAI. (3) The addition of compost and manure can increase the C-organic content of topsoil by 1.62% at 1 MAI to 1.72% at 5 MAI and subsoil by 1.24% at 1 MAI to 1.38% at 5 MAI.
A Growth Pattern, and Caffeine Degradation of Acinetobacter gerneri KAFS 47 on Glucose Media with Addition of Caffeine Arimurti, Sattya; Wicaksono, Bagus Aji; Siswanto, Siswanto
Journal of Coffee and Sustainability Vol. 1 No. 2 (2024)
Publisher : Directorate of Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jcs.2024.01.02.04

Abstract

Caffeine-degrading bacteria are organisms capable of utilizing caffeine as a carbon and nitrogen source. Acinetobacter gerneri KAFS 47 is known to possess the ability to degrade caffeine. The type of carbon source present in the growth medium influences the growth pattern and the caffeine degradation capabilities of caffeine-degrading bacteria. The objective of this study was to ascertain the growth pattern of A. gerneri KAFS 47 and to analyze the pattern of caffeine degradation by A. gerneriKAFS 47 in growth media following the addition of caffeine during the logarithmic phase.  The research methodology encompasses the following steps: 1.) Constructing a growth curve for A. gerneri KAFS 47 using M9 supplemented with 2.5 g/L glucose, M9 supplemented with 2.5 g/L caffeine, M9 supplemented with 2.5 g/L glucose with an additional 2.5 g/L caffeine introduced midway through the logarithmic phase (12 hours), and M9 supplemented with 2.5 g/L glucose with an added 5 g/L caffeine at the midpoint of the logarithmic phase (12 hours); and  2.) developing a caffeine degradation curve for A. gerneri KAFS 47. The addition of caffeine during the logarithmic phase at concentrations of 2.5 g/L and 5 g/L enhanced the logarithmic growth phase of  A. gerneriKAFS 47 in media with a glucose carbon source. Notably, the degradation of caffeine by A. gerneri KAFS 47 was observed to be slower in media containing glucose with added caffeine (2.5 g/L and 5 g/L) compared to media where caffeine served as the sole carbon source.
Segmented Market of Indonesian Coffee Exports to International Market: RFM Approach Rondhi, Mohammad; Nugroho, Hari; Soetriono, Soetriono; Mori, Yasuhiro
Journal of Coffee and Sustainability Vol. 1 No. 2 (2024)
Publisher : Directorate of Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jcs.2024.01.02.05

Abstract

This study aims to determine the characteristics of coffee products in the international market. Data is collected from coffee product export transaction data from 2011-2021, Indonesia Statistic. Export data were selected based on the Harmony system (HS) code of coffee and its derivatives. The analysis method used is RFM (Recency, Frequency, Monetary) Analysis. The results show that there are 12 categories of coffee products exported to 90 countries divided into 9 regions/zones respectively. Coffee export products with the highest interest are arabica WIB (not roasted and not decaffeinated wet-processed Arabica coffee beans) or Robusta OIB (unroasted, with caffeine) coffee. Then the best markets for coffee products exported by Indonesia are the United States, Japan, Malaysia, Germany, Egypt, Georgia, Australia, United Arab Emirate, and Ecuador. The second-best exported coffee product is roasted coffee, with caffeine, unground that being imported Malaysia, China, and New Zealand.  The two categories contribute 98% of export volume of Indonesia’s exported coffee and 78% frequency. The study confirms that the choice of coffee and its derivative products in importing countries is influenced by purchase timing, frequency, and funds used. In addition, purchasing factors are also influenced by the characteristics of consumers and processed industries in these importing countries

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2024 2024


Reset
Filter By Issues
All Issue Vol. 2 No. 1 (2025) Vol. 1 No. 3 (2024) Vol. 1 No. 2 (2024) Vol. 1 No. 1 (2024)