Poster OER - Ngành Công nghệ kỹ thuật hóa học
URI vĩnh viễn cho bộ sưu tập này
Duyệt qua
Đang duyệt Poster OER - Ngành Công nghệ kỹ thuật hóa học theo Tác giả
Đang hiển thị 1 - 3 trong tổng số 3
Kết quả mỗi trang
Tùy chọn sắp xếp
- Tài liệuFabrication of Rosemary Essential Oil Nanoemulsions via Phase Inversion Temperature(Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University; AOTA International Joint Stock Company, Ho Chi Minh City, 2019-10) Le, Minh Thuy Duong, ST; Luu, Xuan Cuong, PhD; Nguyen, Dinh Phuc, MDThis research aimed to develop a rosemary essential oil nanoemulsion using the phase inversion temperature method. Various factors influencing emulsion formation and characteristics, including oil phase composition, surfactant type, and mixing temperature, were investigated. The phase inversion temperature of the system was determined to be approximately 70°C. Among the surfactants evaluated, Tween 80 exhibited exceptional performance in producing nanoemulsions. Nanoemulsions containing up to 10% oil phase could be successfully formulated using 10% Tween 80. Stability testing indicated that the rosemary nanoemulsion remained stable for over 30 days. These findings hold potential for expanding the utilization of rosemary essential oil.
- Tài liệuLaboratory-scale Extraction of Essential Oil from Black Pepper(Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 2019-10) Dang, Thi Cam Huong, ST; Nguyen, Dinh Phuc, MDOptimal conditions for hydrodistillation were determined as an extraction time of approximately 60 minutes, a NaCl concentration of 2%, and a water-to-material ratio of 1:15 g/mL, yielding a maximum of 2.19%. For steam distillation, the optimal parameters were 500g of material, an extraction time of about 45 minutes at an evaporation rate of 0.13 ml/s, resulting in a highest yield of 1.57%. In micro-assisted hydrodistillation, the best conditions included an extraction time of approximately 30 minutes, a water-to-material ratio of 1:4 g/mL, and an extraction power of 380W, achieving a maximum yield of 1.4%. GC-MS analysis identified 70 components, constituting 99% of the total composition. The primary compounds in black pepper essential oil were β-caryophyllene, 3-carene, D-limonene, β-pinene, and α-phellandrene.
- Tài liệuThe Extraction Of Rosemary Essential Oil By Microwave Assisted Distillation(Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 2019-10) Mai, Thi Thuy Linh, ST; Nguyen, Dinh Phuc, MDRosemary (Rosmarinus officinalis L.) has been a significant herb with recognized antiseptic, astringent, antifungal, antibacterial, and antioxidant properties. This study aimed to optimize the microwave-assisted distillation process for extracting rosemary essential oil by investigating the effects of feed-solvent ratio, distillation power, feed leaf size, and distillation time on the yield. Optimal extraction conditions were determined as a feed-solvent ratio of 1:1, distillation power of 380W, distillation time of 25 minutes, and feed leaf size of 0.8-1 cm, resulting in a maximum yield of 2.7%. The study provided a comparative analysis of essential oil quality and quantity and proposed a mechanism for microwave-assisted extraction of rosemary essential oils.