SUSTAIN: Sustainable Technology & Innovation for Food Security

Food security remains one of the most pressing global challenges. Rapid urbanisation, climate change, land degradation, and population growth have placed immense pressure on traditional agricultural systems. In Malaysia, the increasing cost of living, fluctuating food supplies, and limited land for cultivation, especially in urban areas, call for immediate and innovative solutions to ensure a resilient and sustainable food system. These challenges not only threaten food availability but also directly impact human health, nutrition, and well-being, highlighting the urgent need to address food production through the lens of planetary health.

In this context, the establishment of the Sustainable Technology and Innovation for Food Security (SUSTAIN) Research Unit is proposed. The Research Unit will serve as a multidisciplinary platform for research, innovation, and education, focusing on sustainable, small-scale food production systems that are applicable in both urban and rural settings. Through SUSTAIN, we can develop, test, and promote environmentally sustainable, resource-efficient, and economically viable technologies for food production, enabling individuals, institutions, and communities to adopt practical solutions. By linking food security initiatives with planetary health principles, SUSTAIN seeks to foster resilient, equitable, and sustainable food systems that support both human well-being and environmental stewardship.

Through SUSTAIN, we empower everyone, especially urban poor communities and residents in high-rise buildings, to grow their own food despite limited space. By using innovative technologies that require less land, combined with practical solutions and community support, we create opportunities for self-sufficiency, resilience, and healthier lives. Together, we can build a future where fresh, nutritious food is within reach for all, and every space, big or small, becomes a garden of possibility.

RESEARCH FOCUS PROJECTS

VAFS: Vertical Aquafarming System

The VAFS is a closed-loop integrated system that combines vertical hydroponic farming with aquaculture. The system leverages fish waste as a nutrient source for plants, effectively recycling water and reducing input costs. The design is compact and adaptable for urban environments, such as rooftops, balconies, and institutional settings, where land is limited. Research will focus on nutrient flow efficiency, species compatibility, yield optimisation, and environmental monitoring

Catfish-Water Spinach Aquaponics System

A catfish–water spinach aquaponics system operates as a closed-loop ecosystem where aquaculture and hydroponics work in natural symbiosis. Nutrient-rich waste excreted by the catfish (primarily ammonia) is pumped into grow beds, where naturally occurring nitrifying bacteria break down the toxic waste—first into nitrites, then into bioavailable nitrates. The fast-growing water spinach (Ipomoea aquatica) absorbs these nitrates through its dense root network to fuel its growth, naturally filtering and purifying the water in the process. The cleansed water is then recirculated back into the fish tank, creating a continuous biological cycle. This integrated approach maximizes resource efficiency: it produces two distinct food sources—protein-dense catfish and nutrient-rich greens—while using up to 90% less water than traditional soil farming and completely eliminating the need for synthetic fertilizers.

Water Bottle Fish Tank System

This project involves the design and testing of a compact aquaculture system constructed using recycled water bottles. It serves as a low-cost, space-efficient alternative to conventional fish ponds, making it ideal for educational, residential, and small-scale urban applications. The system supports the cultivation of freshwater fish species such as Oreochromis niloticus (tilapia) and catfish, and is designed to operate in confined indoor or semi-indoor environments. By repurposing plastic bottles as fish tanks, the system promotes sustainability, waste reduction, and resource efficiency. Research focuses on water quality parameters, fish growth performance, and the potential integration of the system into home-based food production models.

Pot-Based Paddy Cultivation

This project investigates the feasibility of cultivating rice (Oryza sativa) in containers (pots), particularly in non-traditional and space-constrained environments. The study will examine soil media alternatives, irrigation techniques, yield performance, and the potential of this method as an educational and community empowerment tool. This system does not rely on natural sunlight. Instead, it utilises artificial LED lighting as the primary source of illumination. The use of LED lights is intentional, as their intensity can be calibrated to closely simulate the spectral quality and energy level of natural sunlight. This approach enables consistent photosynthetic activity and supports healthy plant growth in enclosed spaces, making it suitable for urban and space-limited settings such as classrooms, laboratories, or residential areas.

Eco-Kitchen Garden

Eco Kitchen Garden adopts integrated urban farming systems, including a capillary fertigation system, raised bed gardening, and sack farming, promoting sustainable food production, efficient land use, and practical solutions for urban communities, including low-income households and people living in high-rise buildings. Through the capillary fertigation system, we grow crops such as onions, water spinach, lettuce, and mustard greens, which conserves water and ensures efficient nutrient delivery to the plants. In the raised bed gardening system, we cultivate Japanese cucumber, cherry tomatoes, and lettuce, benefiting from improved soil management, drainage, and plant growth. For the sack farming system, we grow potatoes, sweet potatoes, and carrots, a space-saving and flexible method suitable for limited planting areas. By repurposing recycled materials in our kitchen garden, such as plastic bottles as plant containers, we further enhance its sustainability by reducing waste, promoting resource efficiency, and creating a more environmentally friendly growing space. Our kitchen garden is also 100% organic, supporting the supply of fresh vegetables for staff and students while serving as a platform to promote sustainability awareness, healthy eating, and hands-on learning in urban farming.

Azolla Farm

Our Azolla farm cultivates azolla on a large scale to meet the nutritional needs of our livestock, including chickens, ducks, cows, and fish. The azolla is grown in recycled containers, allowing us to repurpose waste materials while producing large quantities efficiently. By using pond wastewater as the cultivation medium, we create a sustainable growth system that not only nourishes the plants but also contributes to water recycling and resource efficiency. This approach establishes a Sustainable Livestock Feed System, enhancing the circular economy by turning waste into a valuable feed resource, reducing environmental impact, and minimizing reliance on commercial feed. Bulk production of azolla ensures a steady and cost-effective supply for our livestock, helping to manage feeding costs while supporting the health and productivity of the animals. Additionally, this system serves as an educational platform, demonstrating practical sustainable farming techniques and the integration of eco-friendly solutions in modern agriculture.

OBJECTIVES

To conduct impactful multidisciplinary research on sustainable, resource-efficient, and space-saving food production systems that strengthen food security and support planetary health in both urban and rural communities.
To develop integrated technologies that combine agriculture and aquaculture suitable for limited space and urban environments.
To provide education, training, and community engagement on food security and sustainable practices.
To contribute to national and international efforts in addressing food security through technological innovation and knowledge transfer.

HOW COMMUNITY CAN BENEFIT FROM THE PROJECT?

Access to Fresh, Local Food: Communities gain direct access to affordable, high-quality, and nutritious food grown right in their own neighborhoods through space-saving agricultural systems.
Lower Cost of Living: Households can significantly reduce their monthly grocery expenses by adopting integrated backyard or balcony farming systems that combine fish and vegetable production.
Hands-on Skill Development: Local residents receive free or low-cost practical training, workshops, and education to master modern, resource-efficient farming techniques.
New Income Streams: Families and urban communities can generate extra revenue by selling surplus produce and fish to local markets, boosting the neighborhood economy.
Protection Against Food Shortages: Communities become self-reliant and resilient against supply chain disruptions, inflation, or food scarcity by producing their own food locally.
A Safer, Cleaner Environment: Neighborhoods enjoy a healthier living environment thanks to eco-friendly farming practices that conserve water, eliminate harmful chemical pesticides, and reduce carbon emissions.
Stronger Neighborhood Unity: Shared community gardens and collaborative farming projects bring residents together, fostering a deep sense of cooperation, social bonding, and mutual support.