Application of Response Surface Methodology to Optimize the Process of Saponification Reaction from Coconut Oil in Ben Tre - Vietnam

Abstract

Response Surface Methodology (RSM) is used to optimize the conditions of the saponification reaction (Concentration of alkaline solution (%), temperature (°C) and reaction time (hour)). Level of foaming and durability of the emulsion (cleaning ability) from the product of the saponification reaction are two factors to evaluate the optimization process by RSM. After optimization, the alkaline solution concentration is 11%, the reaction was carried out for 2.5-3 hours at 85°C for the highest level of foaming and the most prolonged durability of the emulsion. This parameter was compared with the experiment, and the results showed that there was no significant error, this proves that the RSM model has good repeatability, can optimally correct and is essential in optimizing the survey parameters.

Response Surface Methodology for the Optimization of Zn-Contaminated Soil Remediation by Soil Washing with Water-Soluble Chitosan

“…For 3D surface diagrams, two variables were changed while the third variable remained constant at the zero coded level. The 3D graphs could provide support for illustrating more information about the behavior of the system and could describe the level and nature of interactions of independent variables as a function of factors on the removal efficiency of Zn from soils. , The interactions among factors could be described by the shape of contour lines, and the elliptic contour lines indicated a significant interaction, while the circular contour lines indicated an insignificant interaction between corresponding variables. The trends of removal efficiency of Zn from soils against varying pH values and WSCS concentration are illustrated in Figure a, where the washing time was fixed at the zero level (60 min).…”

Small-scale Coconut Farmers in Indragiri Hilir District as a Model of Youth Entrepreneurship in the Plantation Sector

“…The household size was found to have a statistically significant effect on involvement in high-value markets (p = 0.031 decreases a farmer's potential to engage in a strong valuation by 4%. Having a larger household promotes food crop production while decreasing coconut plant cultivation [12], [13]. Another argument is that having a big household reduces agricultural investment, as a greater proportion of household income is diverted to support the needs of other households.…”

Nghiên cứu mô hình động học của quá trình chiết xuất và thành phần hóa học của tinh dầu vỏ Cam (Citrus sinensis)

“…EO là các hợp chất thơm và dễ bay hơi, được chiết xuất từ hạt, hoa, lá và thân cây [1]. EO đóng một vai trò quan trọng trong các lĩnh vực khác nhau bao gồm mĩ phẩm, dược phẩm, thực phẩm và đồ uống [2]. EO có các đặc tính tự nhiên khác nhau như đặc tính kháng khuẩn, kháng virus, kháng nấm, diệt côn trùng [3][4][5]… Cam (Citrus sinensis), cùng họ với bưởi, được trồng chủ yếu ở Malaysia, Thái Lan, Lào và Việt Nam.…”