Being the source of essential minerals, vitamin, and diversity to diet, the demand for consumption of fruits is ever increasing. Among them, many fruits are reach in phenolic compounds, carotenoids, and vitamin C or ascorbic acid, which have huge antioxidant potential and whose intakes are highly encouraged due to their role in reducing cancer, cardiovascular, and neurological diseases [1]. Since the availability of fruits varies from place to place and season to season, consumption of their preserved version has been practiced. One of the best ways to preserve fruit is to store it in juice form. But long term preservation has been a growing concern since the nutritious quality and sensory attributes can be impaired by microorganisms, spoilage enzymes, and undesirable chemical reactions [2]. Moreover, the increasing consciousness about diet and health issues goaded consumer into searching for food products which is of superior nutritional and sensory quality, durable shelf life, and requires minimal processing [3]. To address these issues several treatment methods have been applied among which thermal pasteurization is frequently pronounced. Although thermal processing appear to have extended the shelf life of several juices, it has been demonstrated in several studies that considerable deterioration in sensory, nutritional, and biochemical compounds occur which are very heat sensitive [4,5]. In response to this limitation, researchers have come up with Pulsed Electric Field (PEF) as a nonthermal treatment process which has been proved to decrease microbes and spoilage enzymes to an extent, comparable to that by thermal processes, without sacrifi cing fl avor, color and bioactive compounds [6]. PEF process involves the application of short burst of electric fi eld to a sample placed between two electrodes which causes

<p>Power output from a small solar panel can be affected by its power consumption when it consumes power from the solar panel. There has been a lack of proper research and experiment in the use of small solar panel with tracking systems. Its significance was detailed in this paper where the voltage output are compared with those which were externally powered. The solar trackers and a microcontroller have been designed and fabricated for this research. Due to the use of the tracking system (single axis and dual axis), the power consumption varies from one to another and its effect on the voltage output. Several experiments have been conducted and it was concluded that small solar panels are not efficient enough to utilize with tracking capabilities due to an increase in power consumption. The externally powered system was found to generate 18% more output compared to a selfsustaining system and that the increase in average power consumptions compared to a fixed panel were 31.7% and 82.5% for single-axis and dualaxis tracker respectively. A concrete evidence was made that utilizing solar tracking capabilities for low power rated solar panel is unfeasible.</p>

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