Abstract
The effects of high-pressure homogenization (HPH) on the structural, physical, and rheological properties of lily pulp (15%, w/w) were investigated. Different pressures ranging from 0 MPa to 100 MPa were used. The focus was on evaluating the changes in the particle size distribution (PSD), structure, pulp sedimentation behavior, serum cloudiness (SC), total soluble solids (TSS), color, and rheological behavior of the pulps. PSD analysis showed that the diameter of suspended lily particles significantly decreased with an increasing homogenization pressure. The suspended particles observed through optical microscopy became small after homogenization, highlighting the effect of HPH on disrupting the suspended particles. Compared with the untreated pulp, the SC and sedimentation velocity of the homogenized pulps decreased due to the disruption of the suspended particles. The effects of HPH on the sedimentation index and SC exhibited an asymptotic behavior similar to that of the changes in the particle size of lily pulp. Moreover, HPH processing reduced the viscosity of lily pulp and increased the TSS and lightness of the homogenized pulps. HPH significantly modified the structural, physical, and rheological properties of lily pulp. The pulp homogenized above 60 MPa had good suspension stability. This finding indicates that HPH technology can be used to improve the stability of lily pulp.
Highlights
(Lilium brownii var. viridulum), a perennial ornamental crop that originated from Northern and Eastern Asia, Europe and North America in the Northern Hemisphere, and China, is known as the diversity center of the genus Lilium with about 55 species worldwide [1]
This result indicates that the lily pulp passing through the homogenizer without pressure caused no particle disruption, which is in agreement with previous observations for taro pulp [9] and tomato juice [10]
The particle size significantly decreased after High-pressure homogenization (HPH) processing because the homogenization pressure disrupted the suspended particles and affected other physical and rheological properties
Summary
(Lilium brownii var. viridulum), a perennial ornamental crop that originated from Northern and Eastern Asia, Europe and North America in the Northern Hemisphere, and China, is known as the diversity center of the genus Lilium with about 55 species worldwide [1]. Lily is commonly consumed as an important edible and medicinal plant. Bulbs have high nutritional and pharmacological values and are rich in dietary fibers and low in fat; they are important plant resources for developing novel nutritionally improved products, such as lily-based vegetable beverages [6,7]. Foods 2019, 8, 472 the demand for vegetable-based beverage products is increasing due to changes in people’s food preferences and the increasing number of problems related to the intolerance for cow’s milk [8]. High-pressure homogenization (HPH) is considered one of the most promising technologies for manufacturing beverages due to improvements in HPH and increasing consumer acceptance of pressure-processed food [9]. HPH is widely used in food, cosmetic, and pharmaceutical industries primarily to emulsify, mix, and disperse substances [11]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
