Abstract
The objective of the research was to investigate the properties of pectin derived from mesocarp of nutmeg (Mysristica fragrans Houtt) and edible film made from the pectin and added tapioca. Pectin was extracted from mesocarp of nutmeg using 0.5% of EDTA at pH 1.5-2, and temperature at 90°C for 1 hour. The first group of edible film was prepared using 1% (w/v) of pectin, 1.6% CaCl2, 1% glycerol and various concentration of tapioca (0-2%, w/v). Second group of edible film was prepared using 1% of pectin, 1.6 % CaCl2, 1% glycerol and 2% tapioca and various concentration of palmitic acid (0-0,08 w/v). Physical, mechanical and barrier properties of the films were examined and its capability to reduce weight loss of small pieces of apples during storage was also measured. The result showed that yield of isolated pectin was 20.73% (w/w) having methoxyl content 11.43%, and polygalacturonic acid of 79.47%. Proximate analysis showed that protein, ash and water content in the isolated pectin were 7.86, 3.03 and 7.60%, respectively. Characteristics of first group of film showed that the higher concentration of tapioca added resulted in the higher of tensile strength and thickness. Data of the second groups of films showed that addition of palmitic acid up to 0,08% has no effects on tensile strength, thickness, elongation and water vapour transmission rate (WVTR) of films. Small piece of apples coated or wrapped with edible film (1% pectin – 1,6% CaCl2-2% tapioca-1% glycerol and 0.04% palmitic acid) had lower weight loss and better colour than those of control during storage).
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Claims 10
Claim · model-written summary
Coated or wrapped apple pieces lost less weight during storage than controls.
- Taxon
- apples
Malus domesticae0 - Treatment
- coated or wrapped with edible film (1% pectin – 1,6% CaCl2-2% tapioca-1% glycerol and 0.04% palmitic acid)e0
- Outcome
- weight losse0
- Direction
- lowere0
- Qualifier
- during storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Small piece of apples coated or wrapped with edible film (1% pectin – 1,6% CaCl2-2% tapioca-1% glycerol and 0.04% palmitic acid) had lower weight loss and better colour than those of control during storage”
Claim · model-written summary
Coated or wrapped apple pieces retained better colour during storage than controls.
- Taxon
- applesMalus domesticae0
- Treatment
- coated or wrapped with edible film (1% pectin – 1,6% CaCl2-2% tapioca-1% glycerol and 0.04% palmitic acid)e0
- Outcome
- coloure0
- Direction
- bettere0
- Qualifier
- during storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Small piece of apples coated or wrapped with edible film (1% pectin – 1,6% CaCl2-2% tapioca-1% glycerol and 0.04% palmitic acid) had lower weight loss and better colour than those of control during storage”
Claim · model-written summary
Isolated nutmeg pectin yield was 20.73%.
- Taxon
- nutmeg
Myristica fragranst0 - Outcome
- yield of isolated pectine0
- Value
- 20.73% (w/w)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield of isolated pectin was 20.73% (w/w)”
t0“Nutmeg”
Claim · model-written summary
Isolated nutmeg pectin methoxyl content was 11.43%.
- Taxon
- nutmegMyristica fragranst0
- Outcome
- methoxyl contente0
- Value
- 11.43%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“methoxyl content 11.43%”
t0“Nutmeg”
Claim · model-written summary
Isolated nutmeg pectin polygalacturonic acid content was 79.47%.
- Taxon
- nutmegMyristica fragranst0
- Outcome
- polygalacturonic acide0
- Value
- 79.47%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polygalacturonic acid of 79.47%”
t0“Nutmeg”
Claim · model-written summary
Isolated nutmeg pectin contained 7.86 protein.
- Taxon
- nutmegMyristica fragranst0
- Outcome
- proteine0
- Value
- 7.86e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein, ash and water content in the isolated pectin were 7.86, 3.03 and 7.60%, respectively”
t0“Nutmeg”
Claim · model-written summary
Isolated nutmeg pectin contained 3.03 ash.
- Taxon
- nutmegMyristica fragranst0
- Outcome
- ashe0
- Value
- 3.03e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein, ash and water content in the isolated pectin were 7.86, 3.03 and 7.60%, respectively”
t0“Nutmeg”
Claim · model-written summary
Isolated nutmeg pectin contained 7.60% water.
- Taxon
- nutmegMyristica fragranst0
- Outcome
- water contente0
- Value
- 7.60%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein, ash and water content in the isolated pectin were 7.86, 3.03 and 7.60%, respectively”
t0“Nutmeg”
Claim · model-written summary
Increasing tapioca concentration raised film tensile strength and thickness.
Not reportedTaxonComparator
Verbatim
e0“the higher concentration of tapioca added resulted in the higher of tensile strength and thickness”
Claim · model-written summary
Palmitic acid addition up to 0,08% did not affect film tensile strength, thickness, elongation or water vapour transmission.
- Treatment
- addition of palmitic acid up to 0,08%e0
- Outcome
- tensile strength, thickness, elongation and water vapour transmission rate (WVTR) of filmse0
- Direction
- no effectse0
Not reportedTaxonComparator
Verbatim
e0“addition of palmitic acid up to 0,08% has no effects on tensile strength, thickness, elongation and water vapour transmission rate (WVTR) of films”
The same questions in other papers
calcium chloride dihydrate · quality: postharvest · Malus domestica (apple)Results differ
40 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
43 papers more in this group
See all 47 papers →glycerol · quality: postharvest · Malus domestica (apple)Results agree
1 paper in the same direction as this paper
- positive
pectin · quality: postharvest · Malus domestica (apple)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.