Jack bean is a local legume that can grow in suboptimal land and potential to be developed in Indonesia. Jack bean seed has 33.32% of protein and 61.15% of carbohydrate so it can become a starch source for the food industry. Native starch has a limited application on food products because of its weak characteristics such as being unstable to heat and shear. Heat Moisture Treatment (HMT) starch modification is needed to overcome the weaknesses. HMT is a natural modification because it does not leave a chemical residue. The objective of this research was to investigate the effects of heat moisture treatment (HMT) with various moisture content and time on the pasting properties (peak, through, breakdown, final, setback viscosity, peak time, and peak temperature) of jack bean modified starch. This research used Factorial Completely Randomized Design (FCRD) with two factors, varying moisture content (27%, 30%, 33%) and time (10 h, 13 h, 16 h). The results show that the various moisture leads to increase peak-time, pasting temperature and decrease peak viscosity, through viscosity, breakdown, final and setback viscosity. In addition, higher HMT time could increase peak time, pasting temperature but decrease peak, trough, breakdown, final and setback viscosity.

The food intake of Indonesian people typically includes a high amount of rice. However, the domestic production of rice has not fulfilled the needs. Therefore, a rice analog whose characteristics resemble rice could become a rice substitute. The rice analog in this study was made from a combination of mocaf, cornflour, and mung bean sprout flour. The study aimed to discover the effect of different combinations of the three main ingredients on rice analog's chemical and physical characteristics as well as sensory acceptance, and to obtain the best formulation based on those parameters. This study was conducted by completely randomized experiment design (CRD) with a single factor of ratio between mocaf and mung bean sprout flour. The 5 formulas to be assessed were F1 (50%:10%), F2 (40%:20%), F3 (30%:30%), F4 (20%:40%), F5 (10%:50%). Based on sensory evaluation using hedonic test scoring method, formula F1 that was composed of 50% mocaf, 40% corn flour, and 10% mung bean sprout flour was the best formulation among all. This formula had a yellowish-white color, hulled rice-like oval and long shape, insipidity, neutral flavor, and sticky texture. The rice analogue F1 contained 7.

In this study, the effect of the dual modification with annealing and Heat Moisture Treatment (HMT) on the physicochemical properties of jack bean starch was investigated. Native jack bean starch was modified by the annealing method with a moisture ratio of 1:2 and 1:3 at 50°C, 55°C, and 60°C for 24 hrs. Furthermore, the annealing method was combined with HMT at 30% moisture at 110°C for 16 hrs. The results showed that the dual modification process decreased the whiteness, amylose content, swelling power, solubility, setback viscosity, and breakdown viscosity of the jack bean starch. On the contrary, it led to an increase in the water adsorption, paste clarity, pasting temperature and stability ratio of the starch. The stability ratio of native jack bean starch, the sample treated by the single annealing, and the dual modification were 0.56, 0.62, and 0.86, respectively, indicating that the sample treated with dual modification was more stable at high temperature and shear stress. The dual modification did not affect the crystalline xray diffraction patterns. The findings emphasized the potential of using a dual modification to alternate the characteristic of jack bean starch.

Jack bean (Canavalia ensiformis) is one of Indonesia’s local legumes containing 61.15% of carbohydrates and 33.32% of protein. Natural starch has been limitedly used in food products due to its weak characteristics, especially the instability against heat and shear treatment. Heat Moisture Treatment (HMT) is a favoured method to improve starch durability during processing since it leaves no chemical residue. The HMT temperature, moisture content, and time applied could vary according to the starch’s original characteristics. Thus, this study aimed to evaluate the use of 110°C HMT with three different moisture contents and durations for modifying jack bean starch properties and to obtain the best treatment resulting in the desired starch properties. This study was designed by using Completely Randomized Design (CRD) for two factors, moisture contents (27%, 30%, 33%) and time (10h, 13h, 16h). The results suggested that HMT significantly decreases whiteness, and moisture content. At the same time, it increases water absorption, solubility, and swelling power. The starch’s properties changed significantly following the variation of moisture contents and HMT time. The treatment which resulted in the most thermostable starch obtained in this study was the HMT that applies 33% of moisture content for 10 hours (HMT 33%+10 h).

<p><em><strong>Cooking Machine Application of Ginger Drink (Zingiber officinale) with Automatic Stirrer at UKM Polanmadu</strong></em>. The trend of instant spice drinks that function to maintain the body’s immunity is growing rapidly in the era of the Covid-19 pandemic. Ginger, which is a spice with various benefits, has made many Small and Medium Enterprises (SMEs) industry players take advantage of this potential. One of them is the instant spice drink SME industry player "Polanmadu" which produces natural instant spice drinks. The processing of instant spice drinks is still done conventionally, making Polanmadu SMEs unable to reach consumer demands. The purpose of these activities was to the introduction of appropriate technology in the production of instant spice drinks to produce products with more guaranteed quality and able to generate additional income for partners. The application of the cooking machine is useful so that the stirring process which has been going on for 3 hours conventionally using human power is replaced with electric power so that it is more efficient and profitable. The implementation begins with identification, planning, assembling tools, testing tools, and introducing tools to the spice instant drink production unit. The result showed that the introduction of a spice instant drink cooking machine can produce 20% more crystal ginger extract, automatic stirring while at the same time speeding up the formation of crystals from 3 hours to 2.5 hours, and the product crystal size is more homogenous and an increase in profit of Rp906,000-/day. Overall, the introduction of this spice-cooking machine makes the productivity of SMEs for instant spice drinks increase in quality and quantity.</p>