Vol 11, No 2 (2024): December

Pectin is commonly used to soften jellies, jams and other products. In addition, fruits and vegetables contain pectin to maintain plant cells. Pectin is a high-value food fiber that can be called a functional food. This pectin plays an important role in gel formation and as a stabilizer in the manufacture of jelly, jam, and marmalade. Pectin is widely used in the food industry because it has the ability to act as a fruit preservative and to form a gel as a base for forming jelly as well as a thickener and stabilizer, while in the food industry it is used in the production of jams, confectionery, pasta and dairy products. The objectives of this study are: To determine the physical and chemical properties and quality of pectin extracted with hydrochloric acid (HCL) and to achieve the optimal concentration of hydrochloric acid solvent. The study was conducted in the agroindustrial laboratory of the agricultural faculty of the university of Tadulako, Palu, Sulawesi Tengah. The duration of the study will be from october 2022 to january 2023. This study is an experimental study based on fruit skins with hydrochloric acid concentrations using a complete one-factor random design (RAL) pattern. The factors tested consist of several hydrochloric acid concentration levels, namely: 1N; 1.5N; 2N; 2.5N; AND 3N. The analytical parameters observed include: yield, methoxil level, water level, ash level and galacturonal acid level. the results of the research carried out that: the concentration of HCl solvent in the extraction of pectin fruit peels is best at a concentration of 3N. The concentration of 3N HCl extracted from the Siamese Pumpkin Skin  physical characteristics, namely yield 36.11%, while the chemical properties were 1.99% water content, 0.42% ash content, 3.615% methoxyl content and galactoronate acid 137.88%. and for provide the best quality of pectin from fruit siamese pumpkin skin according to the quality standards set by ippa (international pectin manufacturers association), so it has potential as a thicker and gel forming. based on the results of the research conclusion: Concentration of hydrochloric acid solvent, on  extract siamese pumpkin skin best at 3N concentration.

The area of ​​agricultural land in Indonesia is dominated by rainfed rice fields whose limiting factors are limited water, low land productivity, and low levels of technology adoption. This research was carried out from April 2019 to August 2019. On rainfed land in Karawana Village, Dolo District, Sigi Regency, Central Sulawesi. The technology used is shallow good irrigation pumping. This study aims to develop maize cultivation to increase the production and productivity of strategic commodities with shallow good pumping technology. The results showed that: (a) One technology package through the development of a shallow well irrigation system with pumping which refers to the availability of water and plant needs optimally by using water gun technology. (b) The establishment of an innovative design for rainfed dry land food crops with the production component of tile products with 9.4 tons Lamuru, 6.8 tons/ha, Sukmaraga 6.2 tons/ha, 5.0 tons without weights /ha, R/C: Ratio: 2.16