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author:

Wu, J. (Wu, J..) [1] (Scholars:吴佳) | Lin, X. (Lin, X..) [2] (Scholars:林翔) | Lin, S. (Lin, S..) [3] | Chen, P. (Chen, P..) [4] | Huang, G. (Huang, G..) [5] | Peng, P. (Peng, P..) [6] | Cheng, Y. (Cheng, Y..) [7] | Ma, Y. (Ma, Y..) [8] | Liu, Y. (Liu, Y..) [9] | Ruan, R. (Ruan, R..) [10]

Indexed by:

EI Scopus SCIE

Abstract:

The effects of packaging and storage conditions on the moisture content and instrumental and sensory textural properties of raw and salty light roasted (SLR) California almonds were studied under different storage conditions. The controlled combinations included low, medium, and high temperatures and low and high relative humidity (RH). Almond samples were packaged in cartons or polyethylene (PE) bags with and without vacuum. Both absorption and desorption of moisture by almonds were observed during storage and were dependent on the packaging and storage conditions. In general, gradual changes were observed for samples with PE and vacuum PE packaging in most of the storage conditions, while the samples packed in cartons showed more dramatic changes because these unprotected samples were more vulnerable to seasonal changes in humidity. The SLR almonds showed consistent moisture gains, while the raw almonds tended to lose moisture content in most of the storage conditions. This may be attributed to the low initial moisture content of the SLR samples. All raw samples packed in cartons became softer over time. The softening tended to be enhanced by high storage humidity and temperature. The raw almonds packaged in PE bags were firmer than those packed in cartons but also became softer over time. The firmness of the SLR samples was generally lower than that of raw samples, probably because roasting reduced the density and mechanical strength of the kernels. The firmness of PE packaged SLR samples increased in uncontrolled storage conditions and in higher storage temperature and humidity conditions but decreased slightly in lower temperature and humidity conditions. Vacuum packaging did not affect the firmness much. Using PE packaging and maintaining the RH below 50% and the temperature below 25 degrees C are effective in stabilizing both raw and processed almonds.

Keyword:

Almond Firmness Nonpareil Packaging Relative humidity Sensory Storage Temperature Texture

Community:

  • [ 1 ] [Wu, J.]Fuzhou Univ, Dept Food Engn, Fuzhou, Fujian, Peoples R China
  • [ 2 ] [Lin, X.]Fuzhou Univ, Dept Food Engn, Fuzhou, Fujian, Peoples R China
  • [ 3 ] [Lin, S.]Fuzhou Univ, Dept Food Engn, Fuzhou, Fujian, Peoples R China
  • [ 4 ] [Chen, P.]Univ Minnesota, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA
  • [ 5 ] [Peng, P.]Univ Minnesota, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA
  • [ 6 ] [Ruan, R.]Univ Minnesota, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA
  • [ 7 ] [Huang, G.]Almond Board Calif, Food Res & Technol, Modesto, CA USA
  • [ 8 ] [Cheng, Y.]Beijing Union Univ, Dept Biol Engn, Beijing, Peoples R China
  • [ 9 ] [Ma, Y.]Univ Minnesota, Dept Food Sci & Nutr, 1334 Eckles Ave, St Paul, MN USA
  • [ 10 ] [Liu, Y.]Nanchang Univ, Dept Food Sci & Engn, Nanchang, Jiangxi, Peoples R China
  • [ 11 ] [Ruan, R.]Nanchang Univ, Nanchang, Jiangxi, Peoples R China

Reprint 's Address:

  • [Ruan, R.]206 BioAgEng,1390 Eckles Ave, St Paul, MN 55108 USA

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Source :

TRANSACTIONS OF THE ASABE

ISSN: 2151-0032

Year: 2019

Issue: 3

Volume: 62

Page: 661-671

1 . 1 5 6

JCR@2019

1 . 4 0 0

JCR@2023

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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