The agriculture and manufacturing sectors are the backbones of the Indonesian economy; for this reason, research on the effects of these sectors on carbon emissions is an important subject. This work adds urbanization to enrich research on the Environmental Kuznets Curve (EKC) in Indonesia. The results of this study indicate that the EKC hypothesis was confirmed in Indonesia with a turning point of 2057.89 USD/capita. The research results show that all variables affect the escalation of greenhouse gas emissions in Indonesia. Furthermore, there is a bidirectional causality relationship between emissions with economic growth, emissions with agricultural sector, emissions with manufacturing sector, economic growth with agricultural sector, and economic growth with manufacturing. The unidirectional causality is found in emissions by urbanization and economic growth by urbanization. To reduce the impact of environmental damage caused by the activities of agriculture, manufacturing, and urbanization sectors, it is recommended that the government conduct water-efficient rice cultivation and increase the use of renewable energy.

Black garlic is processed garlic under high temperature (65-90 °C) and humidity (60-80%) during a period (Kimura et al., 2017;Lu et al., 2017). Black garlic has a brown color, less flavor, and high antioxidant properties. Total phenolic of black garlic increases 4-10 fold compared to fresh garlic. Total polyphenol, flavonoid, and antioxidant activity were 58.33 mg GAE/g, 15.37 mg RE/g, and 74.48%, respectively (Choi et al., 2014). Not only as antioxidant agents, black garlic also act as antimicrobials (Altuntas & Korukluoglu, 2019). Black garlic contain phenolic compound, β-carbolines alkaloids (Cao et al., 2007), melanoidins (Wang et al., 2011), organic acids and organic sulfur compound (Yin & Cheng, 2003;Lin et al., 2019). According to Arslaner (2020) organic sulfur compound decrease the yeast-mould compared to the control. This study aimed to determine the antioxidant effect of black garlic powder as a source of natural antioxidants on the physical quality, chemical quality, antioxidant activity, TPC, and sensory quality, of duck nuggets during storage.

The implementation of the ASEAN Economic Community (AEC) will affect the trade flow of goods and services in the ASEAN region. The flow of food from surplus countries to the food-insecure countries will improve national food security. The purpose of this study is to investigate the factors that affect Indonesia’s maize Import in ASEAN trade. The study analyzed the annual data from 1990 to 2016 and cross-section ASEAN member countries, as well as Indonesia’s trading partners such as Malaysia, the Philippines, Thailand, Vietnam, Myanmar, and Singapore. The study applies the Gravity model approach to identify factors that influence maize import in Indonesia. The panel data regression applied to the fixed-effect method. The results show that Indonesian maize imports were influenced by growth in GDP per capita, economic distance, import tariffs, the exchange rate of the Rupiah against the Dollar, the implementation of AEC (ASEAN Economic Community), non-tariff barriers, and the population growth. All the independent variables together affected Indonesian maize imports from Southeast Asia. The empirical results of this study reveal the implications for the development of the production and competitiveness of Indonesian maize. The Indonesian government should strive to increase farm productivity and efficiency to increase maize production.

A total of 56.7% of Indonesia’s population today is concentrated in urban areas. More than 80% of Indonesians belong to the middle and lower socioeconomic class and this segment is the biggest consumer of milk products for young children aged 1-3 years called growing-up milk (GUM). Understanding the brand and customer behaviour is significantly important. This study aimed to examine the behavior of GUM brand switching on middle to lower socioeconomic class consumers in urban communities. The research was conducted in Malang Municipality, East Java Province, using guided interviews with questionnaires. The research respondents were 102 consumers of GUM that were selected by proportional random method in all five sub-districts. The data were processed using Structural Equation Modeling-Partial Least Squares (SEM-PLS). The results showed that the prior experience in purchasing variables had a highly significantly negative effect and the consumer dissatisfaction had a significantly positive effect on the process of brand switching for consumers of GUM products. Empty product stock in the store is one of the real examples of bad prior experience as well as dissatisfaction of the consumers that trigger them to change the old brand to new brand. The GUM companies have to maintain product suppliability.

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