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Emails & domains

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Websites & social links

http://foodscience.psu.edu/directory/hxh83

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Scopus Author ID: 36662261200
SciProfiles: 89567

Countries

United States, Austria

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Employment (6)

The Pennsylvania State University - University Park Campus: University Park, PA, US

2022 to present | Associate Professor (Food Science)
Employment
Source: Self-asserted source
Helene Hopfer

The Pennsylvania State University: University Park, PA, US

2016-07 to 2022 | Assistant Professor (Food Science)
Employment
Source: Self-asserted source
Helene Hopfer

University of California Davis: Davis, CA, US

2015 to 2016 | Research Director (Viticulture & Enology)
Employment
Source: Self-asserted source
Helene Hopfer

HM.Clause: Davis, CA, US

2014 to 2015 | Research Project Manager in Fruit Biochemistry
Employment
Source: Self-asserted source
Helene Hopfer

University of California, Davis: Davis, CA, US

2010 to 2014 | Postdoctoral Scholar (Viticulture & Enology)
Employment
Source: Self-asserted source
Helene Hopfer

Technische Universität Graz: Graz, Steiermark, AT

2006 to 2010 (Analytical Chemistry & Food Chemistry)
Employment
Source: Self-asserted source
Helene Hopfer

Works (50 of 59)

Items per page:
Page 1 of 2

In situ electrochemical impedance spectroscopy of non-BPA food contact coatings on electrolytic tinplate under retort conditions

Journal of Food Engineering
2025-07 | Journal article
DOI: 10.1016/j.jfoodeng.2025.112541
Contributors: Stiphany T. Tieu; Elzbieta Sikora; Ali Tuncay Ozyilmaz; Luke A. Wolfe; Helene Hopfer; Gregory R. Ziegler
Source: check_circle
Crossref

Identifying an Early Leaf Removal Threshold for Grüner Veltliner, a High-Yielding, High-Vigor Cultivar

American Journal of Enology and Viticulture
2024 | Journal article
DOI: 10.5344/ajev.2024.23021
Contributors: Andrew D. Harner; Maria S. Smith; Stephanie T. Keller; Helene Hopfer; Michela Centinari
Source: check_circle
Crossref

Effect of the addition of cocoa sweatings and time of fermentation on flavor compounds and sensory perception of 100% roasted cocoa liquor

Journal of Food Science
2024-11 | Journal article
DOI: 10.1111/1750-3841.17404
Contributors: Nixon Meneses‐Marentes; Sarah M. Bharath; Helene Hopfer
Source: check_circle
Crossref

Online Nutrition Education Videos Teaching How to Use Herbs and Spices to Improve Diet Quality

Journal of Nutrition Education and Behavior
2024-09 | Journal article
DOI: 10.1016/j.jneb.2024.05.231
Contributors: Olivia Lawler; Travis Masterson; Kristina Petersen; Helene Hopfer; Mary Alice Gettings; Amber Denmon; Samantha Zlotorzynski; Penny Kris-Etherton
Source: check_circle
Crossref

What Is Chalky? Investigating Consumer Language and Perception of Fine Particles in Beverages Containing Pea and Potato Starch

Foods
2024-06-13 | Journal article
DOI: 10.3390/foods13121852
Contributors: Kai Kai Ma; Gregory R. Ziegler; Helene Hopfer; John E. Hayes
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Orthorexia Nervosa and Healthy Orthorexia in a Physically Active North American Population

Nutrients
2024-04-10 | Journal article
DOI: 10.3390/nu16081107
Contributors: Jennifer L. Brodock; Helene Hopfer; Travis D. Masterson; John E. Hayes
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Odor-scavenging capabilities of pre-formed “empty” V-type starches for beany off-flavor compounds

Food Hydrocolloids
2024-02 | Journal article
DOI: 10.1016/j.foodhyd.2023.109315
Contributors: Jingyi Zhou; Helene Hopfer; Lingyan Kong
Source: check_circle
Crossref

Using Herbs/Spices to Enhance the Flavor of Commonly Consumed Foods Reformulated to Be Lower in Overconsumed Dietary Components Is an Acceptable Strategy and Has the Potential to Lower Intake of Saturated Fat and Sodium: A National Health and Nutrition Examination Survey Analysis and Blind Tasting

Journal of the Academy of Nutrition and Dietetics
2024-01 | Journal article
DOI: 10.1016/j.jand.2023.07.025
Contributors: Kristina S. Petersen; Victor L. Fulgoni, III; Helene Hopfer; John E. Hayes; Rachel Gooding; Penny Kris-Etherton
Source: check_circle
Crossref

The effect of fat content on sensory perception and consumer acceptability of 70% cacao dark chocolate made from reconstituted cocoa liquor

Journal of Sensory Studies
2023-10 | Journal article
DOI: 10.1111/joss.12864
Contributors: Allison L. Brown; Ezekiel R. Warren; Bradley W. Ingraham; Gregory R. Ziegler; Helene Hopfer
Source: check_circle
Crossref

Delaying grapevine budbreak to prevent spring freeze damage impacts Lemberger wine flavour compounds under variable weather conditions

OENO One
2023-06-02 | Journal article
DOI: 10.20870/oeno-one.2023.57.2.7437
Contributors: Meredith Persico; Donald E. Smith; Maria S. Smith; Helene Hopfer; Michela Centinari
Source: check_circle
Crossref

Roasting and Cacao Origin Affect the Formation of Volatile Organic Sulfur Compounds in 100% Chocolate

Molecules
2023-03-29 | Journal article
DOI: 10.3390/molecules28073038
Contributors: Aaron M. Wiedemer; Alan P. McClure; Erich Leitner; Helene Hopfer
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Optimizing consumer acceptability of 100% chocolate through roasting treatments and effects on bitterness and other important sensory characteristics

Current Research in Food Science
2022 | Journal article
DOI: 10.1016/j.crfs.2022.01.005
Contributors: Alan P. McClure; Helene Hopfer; Ingolf U. Grün
Source: check_circle
Crossref

Synergistic and antagonistic ingredient interactions as a sugar reduction strategy in chocolate milk

Journal of Sensory Studies
2022-10 | Journal article
DOI: 10.1111/joss.12770
Contributors: Helene Hopfer; Alden C. Riak; Robert F. Roberts; John E. Hayes; Gregory R. Ziegler
Source: check_circle
Crossref

Salivary α-amylase activity and flow rate explain differences in temporal flavor perception in a chewing gum matrix comprising starch-limonene inclusion complexes

Food Research International
2022-08 | Journal article
DOI: 10.1016/j.foodres.2022.111573
Contributors: Jennifer L. Goza; Gregory R. Ziegler; Josephine Wee; John E. Hayes; Helene Hopfer
Source: check_circle
Crossref

Effect of alkyl chain length on the antioxidant activity of alkylresorcinol homologs in low-moisture crackers

LWT
2022-07 | Journal article
DOI: 10.1016/j.lwt.2022.113637
Contributors: Andrew S. Elder; John N. Coupland; Helene Hopfer; Ryan J. Elias
Source: check_circle
Crossref

Effect of Copper-Based Fungicide Treatments on the Quality of Hop Produced in the Northeastern United States

Journal of the American Society of Brewing Chemists
2022-04-03 | Journal article
DOI: 10.1080/03610470.2021.1937900
Contributors: Benjamin J. Chrisfield; Beth K. Gugino; Helene Hopfer; Ryan J. Elias
Source: check_circle
Crossref

Preferred beer styles influence both perceptual maps and semantic descriptions of dry hops

Food Quality and Preference
2021-12 | Journal article
DOI: 10.1016/j.foodqual.2021.104337
Contributors: Helene Hopfer; Elliott H. McDowell; Line E. Nielsen; John E. Hayes
Source: check_circle
Crossref

Differences in preferred fat level, sweetener type, and amount of added sugar in chocolate milk in a choice task relate to physical activity and orthorexia

Appetite
2021-08 | Journal article
DOI: 10.1016/j.appet.2021.105214
Contributors: Jennifer L. Brodock; John E. Hayes; Travis D. Masterson; Helene Hopfer
Source: check_circle
Crossref

A Modified Brewing Procedure Informed by the Enzymatic Profiles of Gluten-Free Malts Significantly Improves Fermentable Sugar Generation in Gluten-Free Brewing

Beverages
2021-07-21 | Journal article
DOI: 10.3390/beverages7030053
Contributors: Andrew J. Ledley; Ryan J. Elias; Helene Hopfer; Darrell W. Cockburn
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

USA Mid-Atlantic Consumer Preferences for Front Label Attributes for Local Wine

Beverages
2021-04-23 | Journal article
DOI: 10.3390/beverages7020022
Contributors: Marielle J. Todd; Kathleen M. Kelley; Helene Hopfer
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Influence of Region on Sensory and Chemical Profiles of Pennsylvania Grüner Veltliner Wines

Foods
2021-04-10 | Journal article
DOI: 10.3390/foods10040825
Contributors: Stephanie T. Keller; Andrew D. Harner; Michela Centinari; Ryan J. Elias; Helene Hopfer
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Hopfer-etal-HopsPerception-preprint

2021-03-03 | Other
DOI: 10.31234/osf.io/45tqu
Contributors: Helene Hopfer; Elliott McDowell; Line Elgård Nielsen; John Hayes
Source: check_circle
Crossref

Understanding American premium chocolate consumer perception of craft chocolate and desirable product attributes using focus groups and projective mapping

PLOS ONE
2020-11-04 | Journal article
DOI: 10.1371/journal.pone.0240177
Contributors: Allison L. Brown; Patrizia Restani; Alyssa J. Bakke; Helene Hopfer
Source: check_circle
Crossref

Individual Differences in Thresholds and Consumer Preferences for Rotundone Added to Red Wine

Nutrients
2020-08-20 | Journal article
DOI: 10.3390/nu12092522
Contributors: Jessica M. Gaby; Alyssa J. Bakke; Allison N. Baker; Helene Hopfer; John E. Hayes
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Impact of Copper Fungicide Use in Hop Production on the Total Metal Content and Stability of Wort and Dry-Hopped Beer

Beverages
2020-08-03 | Journal article
DOI: 10.3390/beverages6030048
Contributors: Benjamin J. Chrisfield; Helene Hopfer; Ryan J. Elias
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Flavanol Polymerization Is a Superior Predictor of α-Glucosidase Inhibitory Activity Compared to Flavanol or Total Polyphenol Concentrations in Cocoas Prepared by Variations in Controlled Fermentation and Roasting of the Same Raw Cocoa Beans

Antioxidants
2019-12-11 | Journal article
DOI: 10.3390/antiox8120635
Contributors: Kathryn C. Racine; Brian D. Wiersema; Laura E. Griffin; Lauren A. Essenmacher; Andrew H. Lee; Helene Hopfer; Joshua D. Lambert; Amanda C. Stewart; Andrew P. Neilson
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Temporal Check-All-That-Apply (TCATA) Reveals Matrix Interaction Effects on Flavor Perception in a Model Wine Matrix

Foods
2019-12-04 | Journal article
DOI: 10.3390/foods8120641
Contributors: Andrew R. Poveromo; Helene Hopfer
Source: check_circle
Crossref

A Comparison of Two Sensory Panels Trained with Different Feedback Calibration Range Specifications via Sensory Description of Five Beers

Foods
2019-11-01 | Journal article
DOI: 10.3390/foods8110534
Contributors: Line Elgaard; Line A. Mielby; Helene Hopfer; Derek V. Byrne
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

The Effects of Storage Temperature on the Aroma of Whole Bean Arabica Coffee Evaluated by Coffee Consumers and HS-SPME-GC-MS

Beverages
2018-09-06 | Journal article
DOI: 10.3390/beverages4030068
Contributors: Andrew R. Cotter; Helene Hopfer
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Comparison of Dilution, Filtration, and Microwave Digestion Sample Pretreatments in Elemental Profiling of Wine by ICP-MS

Molecules
2017-09 | Journal article | Author
DOI: 10.3390/molecules22101609
Contributors: Joshua Godshaw; Helene Hopfer; Jenny Nelson; Susan E. Ebeler
Source: check_circle
Multidisciplinary Digital Publishing Institute
grade
Preferred source (of 2)‎

Elemental Profiles of Whisk(e)y Allow Differentiation by Type and Region

Beverages
2017-01-23 | Journal article
DOI: 10.3390/beverages3010008
Contributors: Helene Hopfer; Greg Gilleland; Susan Ebeler; Jenny Nelson
Source: check_circle
Crossref

HS-SPME-GC-MS/MS Method for the Rapid and Sensitive Quantitation of 2-Acetyl-1-pyrroline in Single Rice Kernels

Journal of Agricultural and Food Chemistry
2016 | Journal article
DOI: 10.1021/acs.jafc.6b00703
EID:

2-s2.0-84973171106
Contributors: Hopfer, H.; Jodari, F.; Negre-Zakharov, F.; Wylie, P.L.; Ebeler, S.E.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Total arsenic analysis in Californian wines with hydride generation-microwave plasma-atomic emission spectroscopy (HG-MP-AES)

Journal of Analytical Atomic Spectrometry
2016 | Journal article
DOI: 10.1039/c6ja00051g
EID:

2-s2.0-84973390208
Contributors: Tanabe, C.K.; Hopfer, H.; Gilleland, G.; Liba, A.; Ebeler, S.E.; Nelson, J.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Effect of region on the volatile composition and sensory profiles of malbec and cabernet sauvignon wines

ACS Symposium Series
2015 | Book
DOI: 10.1021/bk-2015-1203.ch007
EID:

2-s2.0-84948663767
Contributors: Heymann, H.; Robinson, A.L.; Buscema, F.; Stoumen, M.E.; King, E.S.; Hopfer, H.; Boulton, R.B.; Ebeler, S.E.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Elemental profiling of malbec wines under controlled conditions using microwave plasma-atomic emission spectroscopy

American Journal of Enology and Viticulture
2015 | Journal article
DOI: 10.5344/ajev.2015.14120
EID:

2-s2.0-84940367047
Contributors: Nelson, J.; Hopfer, H.; Gilleland, G.; Cuthbertson, D.; Boulton, R.; Ebeler, S.E.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Influence of pre-fermentation treatments on wine volatile and sensory profile of the new disease tolerant cultivar solaris

Molecules
2015 | Journal article
DOI: 10.3390/molecules201219791
EID:

2-s2.0-84954338813
Contributors: Zhang, S.; Petersen, M.A.; Liu, J.; Toldam-Andersen, T.B.; Ebeler, S.E.; Hopfer, H.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Correlating Wine Quality Indicators to Chemical and Sensory Measurements

Molecules
2015-05 | Journal article
DOI: 10.3390/molecules20058453
Contributors: Helene Hopfer; Jenny Nelson; Susan Ebeler; Hildegarde Heymann
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Evaluation of GC-ICP-MS/MS as a New Strategy for Specific Heteroatom Detection of Phosphorus, Sulfur, and Chlorine Determination in Foods

J. Agric. Food Chem.
2015-05 | Journal article
DOI: 10.1021/jf506372e
Contributors: Jenny Nelson; Helene Hopfer; Fabio Silva; Steve Wilbur; Jianmin Chen; Kumi Shiota Ozawa; Philip L. Wylie
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Grape and wine sensory attributes correlate with pattern-based discrimination of Cabernet Sauvignon wines by a peptidic sensor array

Tetrahedron
2015-05 | Journal article
DOI: 10.1016/j.tet.2014.09.062
Contributors: Alona P. Umali; Eman Ghanem; Helene Hopfer; Ahmed Hussain; Yu-ting Kao; Lianna G. Zabanal; Brandon J. Wilkins; Courtney Hobza; Duan K. Quach; Morgan Fredell et al.
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Predicting the Composition of Red Wine Blends Using an Array of Multicomponent Peptide-Based Sensors

Molecules
2015-05 | Journal article
DOI: 10.3390/molecules20059170
Contributors: Eman Ghanem; Helene Hopfer; Andrea Navarro; Maxwell Ritzer; Lina Mahmood; Morgan Fredell; Ashley Cubley; Jessica Bolen; Rabia Fattah; Katherine Teasdalea et al.
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 4)‎

The combined impact of vineyard origin and processing winery on the elemental profile of red wines

Food Chemistry
2015-04 | Journal article
DOI: 10.1016/j.foodchem.2014.09.113
Contributors: Helene Hopfer; Jenny Nelson; Thomas S. Collins; Hildegarde Heymann; Susan E. Ebeler
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Comparison of different data analysis tools to study the effect of storage conditions on wine sensory attributes and trace metal composition

Foodinformatics: Applications of Chemical Information to Food Chemistry
2014 | Book
DOI: 10.1007/978-3-319-10226-9-8
EID:

2-s2.0-84930742044
Contributors: Hopfer, H.; Ebeler, S.E.; Heymann, H.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Comparison of Different Data Analysis Tools to Study the Effect of Storage Conditions on Wine Sensory Attributes and Trace Metal Composition

Foodinformatics
2014 | Other
DOI: 10.1007/978-3-319-10226-9_8
Contributors: Helene Hopfer; Susan E. Ebeler; Hildegarde Heymann
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search

How trace elemental analysis provides important insight into wine chemistry

Spectroscopy (Santa Monica)
2014 | Journal article
EID:

2-s2.0-84907185177
Contributors: Hopfer, H.; Nelson, J.; Collins, T.S.; Heymann, H.; Ebeler, S.E.
Source: Self-asserted source
Helene Hopfer via Scopus - Elsevier

Corrigendum to “Judging wine quality: Do we need experts, consumers or trained panelists?” [Food Qual. Prefer. 32 (2014) 221–233]

Food Quality and Preference
2014-09 | Journal article
DOI: 10.1016/j.foodqual.2014.02.010
Contributors: Helene Hopfer; Hildegarde Heymann
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Sensory characterization of Hunter Valley Semillon aged in bottle

Flavour Fragr. J.
2014-08 | Journal article
DOI: 10.1002/ffj.3211
Contributors: John W. Blackman; Helene Hopfer; Anthony J. Saliba; Leigh M. Schmidtke; Celia Barril; Geoffrey R. Scollary
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Comparison of descriptive analysis, projective mapping and sorting performed on pictures of fruit and vegetable mixes

Food Quality and Preference
2014-07 | Journal article
DOI: 10.1016/j.foodqual.2014.02.006
Contributors: Line Holler Mielby; Helene Hopfer; Sidsel Jensen; Anette Kistrup Thybo; Hildegarde Heymann
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

Classical Descriptive Analysis

Novel Techniques in Sensory Characterization and Consumer Profiling
2014-04 | Other
DOI: 10.1201/b16853-3
Contributors: Hildegarde Heymann; Ellena King; Helene Hopfer
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search

Judging wine quality: Do we need experts, consumers or trained panelists?

Food Quality and Preference
2014-03 | Journal article
DOI: 10.1016/j.foodqual.2013.10.004
Contributors: Helene Hopfer; Hildegarde Heymann
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎

An Exploration of the Perception of Minerality in White Wines by Projective Mapping and Descriptive Analysis

J Sens Stud
2013 | Journal article
DOI: 10.1111/joss.12076
Contributors: Hildegarde Heymann; Helene Hopfer; Dwayne Bershaw
Source: Self-asserted source
Helene Hopfer via Crossref Metadata Search
grade
Preferred source (of 2)‎
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Peer review (11 reviews for 6 publications/grants)

Review activity for Antioxidants. (1)
Review activity for Food chemistry. (1)
Review activity for Food quality and preference. (3)
Review activity for Food structure. (1)
Review activity for Journal of agricultural and food chemistry. (4)
Review activity for npj science of food. (1)
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