This study aimed to examine the effects of porous structure and water plasticization on the mechanical glass transition temperature (Tg) of freeze-dried trehalose solid and cookie. The thermal Tg and mechanical Tg were evaluated by differential scanning calorimetry (DSC) and thermal rheological analysis (TRA), respectively. The mechanical Tg of the porous trehalose sample was slightly higher than that of the pellet sample. The mechanical Tgs for pellet and porous trehalose samples were higher than thermal Tg. Although pellet, crust, and crumb cookie samples showed indistinct glass transition behavior in the DSC thermosgrams, TRA revealed a clear glass transition. There were little differences in the mechanical Tg of the cookie samples. The mechanical Tg decreased with an increase in water content, and mechanically and thermally critical water contents (water content at Tg = 25 °C) were evaluated. Fracture properties of the cookie sample changed discontinuously at the thermally critical water content.
Journal of Food Engineering – Elsevier
Published: Jan 1, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera